pitted quillwort - traduction vers russe
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pitted quillwort - traduction vers russe

SPECIES OF PLANT
Land Quillwort; Land quillwort

pitted quillwort      

общая лексика

полушник мелкоямчатый (Isoetes foveolata)

lake quillwort         

общая лексика

полушник крупноспоровый (Isoetes macrospora)

quillwort         
  • Reproductive cycle of ''Isoetes''. The diploid sporophyte (A) produces microsporangia and megasporangia, which are located at the leaf bases. A cross section of the plant (B) shows that the megasporangia are located more towards the outer leaves (2) and the microsporangia are concentrated in the center (1). Via meiosis, the sporangia produce haploid spores (C). The megasporangia produce megaspores (3) which become female gametophytes and the microsporangia produce microspores (4) which become male gametophytes. The gametophytes germinate inside the spore, cracking the outer layer known as the perispore (5) as they grow via mitosis to expose the reproductive organs (6). Sperm from the male gametophytes locate the archegonia neck cells on the female gametophyte (6) and swim down to fertilize the egg. A diploid embryo is formed and a young sporophyte (D) is rapidly created through mitosis, eventually growing into another adult sporophyte.
  • Quillwort megasporangia
GENUS OF PLANTS
Quillwort; Isoëtes

['kwilwə:t]

общая лексика

расходник

ботаника

полушник (Isoetes)

посконник пурпурный (Eupatorium purpureum)

Смотрите также

lake quillwort; pitted quillwort; riverbank quillwort; sugary quillwort; warty quillwort

существительное

ботаника

полушник

расходник (Isoetes)

Définition

Quillwort
·noun Any plant or species of the genus Isoetes, cryptogamous plants with a cluster of elongated four-tubed rushlike leaves, rising from a corm, and containing spores in their enlarged and excavated bases. There are about seventeen American species, usually growing in the mud under still, shallow water. So called from the shape of the shape of the leaves.

Wikipédia

Isoetes histrix

Isoetes histrix, the land quillwort, is an aquatic pteridophyte native to the Mediterranean region, northwestern Africa, and the coasts of western Europe northwest to Cornwall. It occurs mainly in temporarily wet habitats, otherwise called vernal pools.

The leaves are 3–8 cm long, and summer-deciduous. It differs from Isoetes durieui by its large black scales between the leaves, though these are not always present, and a surface of megaspores with tubercles, whereas I. durieui has a network of ridges.

Traduction de &#39pitted quillwort&#39 en Russe