英语词汇“indusium”造句的方法、技巧、例句及翻译-英语例句辞典

Sori round or roundish, on the back or rarely at the apex of the vein, with a special indusium, rarely naked. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z

Wheeler, however, compares with the “dorsal organ” the peculiar extra embryonic membrane or indusium which he has observed between serosa and amnion in the embryo of the grasshopper Xiphidium. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" 2012-04-04T02:00:56.447Z

In Maidenhair-Ferns a little lobe of the leaf is folded back over each fruit-dot, to serve as its shield or indusium. The Elements of Botany For Beginners and For Schools

When the fruit is ripe, the indusium is something of a lilac colour, spotting the frond in double rows—as you see it there. The Old Helmet, Volume I

Sori on the edge of a pinnule terminating a vein; sporangia at the base of a long, bristle-like receptacle surrounded by a cup-shaped indusium. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Sori round, borne on the veins; indusium fixed under the sorus, divided into segments or into slender filaments. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z

In most genera of the order the pollen is pushed out of the indusium by the growth of the style or stigma, very much as occurs in Lobelia or the Compositae. More Letters of Charles Darwin — Volume 2

Sori oblong or linear, borne on a veinlet parallel to the midrib, and covered with a special usually concave or arched indusium attached to the fruiting veinlet, and opening along the inner side. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z

Sporangia borne in a double row on narrow fertile segments, each sporangium seated on a separate veinlet, and provided with a special scale-like indusium. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z

Sporangia near or on the margin of the segments, the reflexed portions of which serve as indusia. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Sporangia much as in Schizæa, but oblique, fixed to the veinlet by the inner side next the base, one or rarely two covered by each indusium. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z

The indusium is usually described as broadly two-lipped, without any distinct stigma. More Letters of Charles Darwin — Volume 2

Some species with continuous indusium connect this genus very closely with the next. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z

Margin of the indusium denticulate and beset with minute, stalked glands. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Sporangia borne in a continuous line along the lower margin of the ultimate divisions whose reflexed edges form the indusium. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Sori more or less elongated, without indusium, placed on the back of the frond, usually along the veins or near their extremities. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z

This led Darwin to publish a short note in the same journal, in which he describes the penetration of pollen-tubes into the viscid surface on the outside of the indusium. More Letters of Charles Darwin — Volume 2

The sori of this species have a peculiar beauty on account of the star-shaped indusium, as it splits into fragments. The Fern Lover's Companion A Guide for the Northeastern States and Canada

It is one of our handsomest evergreen ferns and even the large sori, with their dark spore cases and white indusia, are very attractive. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Ferns with much divided leaves and short, marginal sori borne at the ends of free-forking veins, on the under side of the reflexed and altered portion of the pinnules, which serves as an indusium. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Sporangia borne on elevated receptacles, forming roundish sori imperfectly covered by very delicate hood-shaped indusia attached to the base of the receptacles. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z

How curious that the indusium should first so cleverly collect pollen and then afterwards push it out! More Letters of Charles Darwin — Volume 2

In outline the fragile bladder fern suggests the blunt-lobed Woodsia, but in the latter the pinnæ and pinnules are usually broader and blunter, and its indusium splits into jagged lobes. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Sporangia borne on an elevated, globular receptacle in a membranous, cup-shaped indusium which is open at the top. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Pinnules triangular-oblong, bearing short sori on their inwardly reflexed margins which form the indusium. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Sori more or less elongated, occupying one or both sides of oblique veins, covered by a special indusium which is attached by one side to the fertile vein, and is free on the other. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z

I have just examined a large bud with the indusium not yet closed, and it seems to me certain that there is no stigma within. More Letters of Charles Darwin — Volume 2

Short, indusium usually more or less curved and frequently crossing a vein. The Fern Lover's Companion A Guide for the Northeastern States and Canada

The indusium is formed of the altered margin of the pinnule, at first reflexed to the midrib, giving it a pod-like appearance, but at length opening out flat and exposing the sporangia. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Pinnules divided into minute, densely crowded segments, the herbaceous margin recurved and forming an almost continuous indusium. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Sori linear, confluent in pairs, each pair appearing like a single sorus with a double indusium opening down the middle. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z

The yield of pollen is therefore differently arranged in Leschenaultia; for in the more typical genera it depends on the growth of the style inside the indusium. More Letters of Charles Darwin — Volume 2

The indusium whitish and sometimes herbaceous, formed of the reflexed margin of the lobes or of the whole pinnule. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Pinnules distant, the reflexed, narrow margin forming a continuous, membranous indusium. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Sori linear, a row on either side of the midvein, and at right angles to it, the indusium appearing to be double. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Much like the last, but the rather larger fronds puberulent beneath with minute jointed hairs and stalked glands; indusium deeply cleft into narrow segments ending in jointed hairs.—Rocky places, Minn., southward and westward. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z

I find that in bud the indusium collects all the pollen splendidly, but, differently from Leschenaultia, cannot be afterwards easily opened. More Letters of Charles Darwin — Volume 2

Small ferns with fruit-dots borne beneath the revolute margin of the pinnules, at first roundish, but soon confluent into a narrow band without indusium. The Fern Lover's Companion A Guide for the Northeastern States and Canada

The beech ferns are often classed with the polypodies, because, like them, they have no indusium; but in other ways they are more akin to the wood ferns. The Fern Lover's Companion A Guide for the Northeastern States and Canada

The wood ferns, on the other hand, have a kidney-shaped indusium attached to the fronds by the sinus. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Sori minute, at the ends of the veins; indusium continuous or interrupted. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z

Do you remember the scarlet Leschenaultia formosa with the sticky margin outside the indusium? More Letters of Charles Darwin — Volume 2

Pinnules toothed or entire nearly covered beneath with the large, thin, imbricated indusia which are orbicular with a narrow sinus, having the margins ragged and sparingly glanduliferous. The Fern Lover's Companion A Guide for the Northeastern States and Canada

To return for a moment to the indusium: how curious it is that the pollen should be thus collected in a special receptacle, afterwards to be swept out by insects' agency! More Letters of Charles Darwin — Volume 2

Although the genus Polýstichum represents the true shield ferns, the wood ferns are also thus designated, as their indusia have nearly the shape of small, roundish shields. The Fern Lover's Companion A Guide for the Northeastern States and Canada

Sori roundish or elongated and extending far down the free veins, at first covered by the very broad continuous indusium, at length exposed and confluent. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z

The stigma continues to grow, but is not apparently ready for impregnation until it is developed into two long protruding horns, at which period all the pollen has been pushed out of the indusium. More Letters of Charles Darwin — Volume 2

单词	indusium
例句	indusium Sori round or roundish, on the back or rarely at the apex of the vein, with a special indusium, rarely naked. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Wheeler, however, compares with the “dorsal organ” the peculiar extra embryonic membrane or indusium which he has observed between serosa and amnion in the embryo of the grasshopper Xiphidium. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" 2012-04-04T02:00:56.447Z In Maidenhair-Ferns a little lobe of the leaf is folded back over each fruit-dot, to serve as its shield or indusium. The Elements of Botany For Beginners and For Schools When the fruit is ripe, the indusium is something of a lilac colour, spotting the frond in double rows—as you see it there. The Old Helmet, Volume I Sori on the edge of a pinnule terminating a vein; sporangia at the base of a long, bristle-like receptacle surrounded by a cup-shaped indusium. The Fern Lover's Companion A Guide for the Northeastern States and Canada Sori round, borne on the veins; indusium fixed under the sorus, divided into segments or into slender filaments. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z In most genera of the order the pollen is pushed out of the indusium by the growth of the style or stigma, very much as occurs in Lobelia or the Compositae. More Letters of Charles Darwin — Volume 2 Sori oblong or linear, borne on a veinlet parallel to the midrib, and covered with a special usually concave or arched indusium attached to the fruiting veinlet, and opening along the inner side. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Sporangia borne in a double row on narrow fertile segments, each sporangium seated on a separate veinlet, and provided with a special scale-like indusium. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Sporangia near or on the margin of the segments, the reflexed portions of which serve as indusia. The Fern Lover's Companion A Guide for the Northeastern States and Canada Sporangia much as in Schizæa, but oblique, fixed to the veinlet by the inner side next the base, one or rarely two covered by each indusium. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The indusium is usually described as broadly two-lipped, without any distinct stigma. More Letters of Charles Darwin — Volume 2 Some species with continuous indusium connect this genus very closely with the next. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Margin of the indusium denticulate and beset with minute, stalked glands. The Fern Lover's Companion A Guide for the Northeastern States and Canada Sporangia borne in a continuous line along the lower margin of the ultimate divisions whose reflexed edges form the indusium. The Fern Lover's Companion A Guide for the Northeastern States and Canada Sori more or less elongated, without indusium, placed on the back of the frond, usually along the veins or near their extremities. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z This led Darwin to publish a short note in the same journal, in which he describes the penetration of pollen-tubes into the viscid surface on the outside of the indusium. More Letters of Charles Darwin — Volume 2 The sori of this species have a peculiar beauty on account of the star-shaped indusium, as it splits into fragments. The Fern Lover's Companion A Guide for the Northeastern States and Canada It is one of our handsomest evergreen ferns and even the large sori, with their dark spore cases and white indusia, are very attractive. The Fern Lover's Companion A Guide for the Northeastern States and Canada Ferns with much divided leaves and short, marginal sori borne at the ends of free-forking veins, on the under side of the reflexed and altered portion of the pinnules, which serves as an indusium. The Fern Lover's Companion A Guide for the Northeastern States and Canada Sporangia borne on elevated receptacles, forming roundish sori imperfectly covered by very delicate hood-shaped indusia attached to the base of the receptacles. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z How curious that the indusium should first so cleverly collect pollen and then afterwards push it out! More Letters of Charles Darwin — Volume 2 In outline the fragile bladder fern suggests the blunt-lobed Woodsia, but in the latter the pinnæ and pinnules are usually broader and blunter, and its indusium splits into jagged lobes. The Fern Lover's Companion A Guide for the Northeastern States and Canada Sporangia borne on an elevated, globular receptacle in a membranous, cup-shaped indusium which is open at the top. The Fern Lover's Companion A Guide for the Northeastern States and Canada Pinnules triangular-oblong, bearing short sori on their inwardly reflexed margins which form the indusium. The Fern Lover's Companion A Guide for the Northeastern States and Canada Sori more or less elongated, occupying one or both sides of oblique veins, covered by a special indusium which is attached by one side to the fertile vein, and is free on the other. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z I have just examined a large bud with the indusium not yet closed, and it seems to me certain that there is no stigma within. More Letters of Charles Darwin — Volume 2 Short, indusium usually more or less curved and frequently crossing a vein. The Fern Lover's Companion A Guide for the Northeastern States and Canada The indusium is formed of the altered margin of the pinnule, at first reflexed to the midrib, giving it a pod-like appearance, but at length opening out flat and exposing the sporangia. The Fern Lover's Companion A Guide for the Northeastern States and Canada Pinnules divided into minute, densely crowded segments, the herbaceous margin recurved and forming an almost continuous indusium. The Fern Lover's Companion A Guide for the Northeastern States and Canada Sori linear, confluent in pairs, each pair appearing like a single sorus with a double indusium opening down the middle. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The yield of pollen is therefore differently arranged in Leschenaultia; for in the more typical genera it depends on the growth of the style inside the indusium. More Letters of Charles Darwin — Volume 2 The indusium whitish and sometimes herbaceous, formed of the reflexed margin of the lobes or of the whole pinnule. The Fern Lover's Companion A Guide for the Northeastern States and Canada Pinnules distant, the reflexed, narrow margin forming a continuous, membranous indusium. The Fern Lover's Companion A Guide for the Northeastern States and Canada Sori linear, a row on either side of the midvein, and at right angles to it, the indusium appearing to be double. The Fern Lover's Companion A Guide for the Northeastern States and Canada Much like the last, but the rather larger fronds puberulent beneath with minute jointed hairs and stalked glands; indusium deeply cleft into narrow segments ending in jointed hairs.—Rocky places, Minn., southward and westward. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z I find that in bud the indusium collects all the pollen splendidly, but, differently from Leschenaultia, cannot be afterwards easily opened. More Letters of Charles Darwin — Volume 2 Small ferns with fruit-dots borne beneath the revolute margin of the pinnules, at first roundish, but soon confluent into a narrow band without indusium. The Fern Lover's Companion A Guide for the Northeastern States and Canada The beech ferns are often classed with the polypodies, because, like them, they have no indusium; but in other ways they are more akin to the wood ferns. The Fern Lover's Companion A Guide for the Northeastern States and Canada The wood ferns, on the other hand, have a kidney-shaped indusium attached to the fronds by the sinus. The Fern Lover's Companion A Guide for the Northeastern States and Canada Sori minute, at the ends of the veins; indusium continuous or interrupted. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Do you remember the scarlet Leschenaultia formosa with the sticky margin outside the indusium? More Letters of Charles Darwin — Volume 2 Pinnules toothed or entire nearly covered beneath with the large, thin, imbricated indusia which are orbicular with a narrow sinus, having the margins ragged and sparingly glanduliferous. The Fern Lover's Companion A Guide for the Northeastern States and Canada To return for a moment to the indusium: how curious it is that the pollen should be thus collected in a special receptacle, afterwards to be swept out by insects' agency! More Letters of Charles Darwin — Volume 2 Although the genus Polýstichum represents the true shield ferns, the wood ferns are also thus designated, as their indusia have nearly the shape of small, roundish shields. The Fern Lover's Companion A Guide for the Northeastern States and Canada Sori roundish or elongated and extending far down the free veins, at first covered by the very broad continuous indusium, at length exposed and confluent. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The stigma continues to grow, but is not apparently ready for impregnation until it is developed into two long protruding horns, at which period all the pollen has been pushed out of the indusium. More Letters of Charles Darwin — Volume 2
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