फर्न और मॉस में पत्ता जो स्पोरैंगिया को सहन करता है

sporophyll शब्द के हिंदी अर्थ का उदाहरण:

नर पौधे स्पोरोफिल वाले पराग शंकु का उत्पादन करते हैं जिसमें से प्रत्येक में दो माइक्रोस्पोरान्गिया होता है जो एक केंद्रीय अक्ष के इर्द-गिर्द व्यवस्थित होता है।

लघु बीजाणु (microspore) पैदा करनेवाले माइक्रोस्पोरोफिल के मिलने से नर कोन, या नर शंकु (male cone और बड़े बीजांड (ovule) वाले गुरु बीजाणुवर्ण (megasporophyll) के संयुक्त मादा कोन (female cone), या मादा शंकु बनते हैं।

জজজ

sporophyll's Usage Examples:

The cones, which in some instances at least were heterosporous, presented a general resemblance to those of Lycopodium and Selaginella, a single sporangium being situated on the upper surface of each sporophyll.

A single sporangium is borne on the axis just above the insertion of each sporophyll.

H, Sporophyll bearing the single sporangium on its upper surface.

The sporangia of the Psilotaceae are associated in synangia, which occupy the same position relatively to the sporophyll, as the single sporangium of Lycopodium or the group of sporangia in Spenophyllum majus.

In Sphenophyllum fertile both the ventral lobes of the sporophyll (corresponding to the sporangiophores in other species) and the dorsal lobes, which in other species are sterile, were developed as peltate sporangiophores.

There is thus a considerable body of evidence to support Bowers view of the primitive nature of the sporophyll.

It was formerly assumed, and the view is still held, that the foliage-leaf was the primitive form from which all others were derived, mainly on the ground that, in ontogeny, the foliage-leaf generally precedes the sporophyll.

Flora), the primitive leaf was a reproductive leaf, a sporophyll, from which the foliage-leaf was derived by progressive sterilization.

Metamorphosis.It has already been pointed out that each kind of member of the body may present a variety of forms. For example, a stem may be a tree-trunk, or a twining stem, or a tendril, or a thorn, or a creeping rhizome, or a tuber; a leaf may be a green foliage-leaf, or a scale protecting a bud, or a tendril, or a pitcher, or a floral leaf, either sepal, petal, stamen or carpel (sporophyll); a root may be a fibrous root, or a swollen tap-root like that of the beet or the turnip. All these various forms are organs discharging some special function, and are examples of what Wolff called modification, and Goethe metamorphosis.

In GY~~1NospERMsso-called because the ovules (and seeds) are borne on an open sporophyll or carpelthe microsporophylls and macrosporophylls are not as a rule associated in the same shoot and are generally arranged in cone-like structures; one or two small prothallial cells are formed in the germination of the microspore; the male cells are in some older members of the group motile though usually passive.

sporophyll's Meaning':

leaf in ferns and mosses that bears the sporangia