Marattiaceae का जीनस टाइप करें: स्पोरेंजिया वाले फर्न ने दो पंक्तियों में एक साथ जुड़ा हुआ

marattia's Usage Examples:

(X 240.) association is closest in Danaea, where the individual sporangia of the elongated sorus, which is sunk in a depression of the leaf, open by pores; in Marattia and Kaulfussia (fig.

In size, position, arrangement, and manner of dehiscence the sporangia bear a striking resemblance to those of Marattia and Danaea among recent Marattiaceae.

One of the few forms so far recorded is that known as Marattia Muensteri from Rhaetic localities in Europe and Asia.

In all these genera there is an obvious similarity to the synangia of Kaulfussia, while in some respects Marattia or Danaea is approached.

The leaves, at the base of which are two large stipulelike outgrowths, have a thick leaf-stalk, and are simple or simply pinnate in Danaea, pinnate in Archangiopteris, bito tri-pinnate in Marattia and Angiopteris, and digitately lobed in Kaulfussia.

These are ferns of considerable size, the large leaves of which are borne on a short, erect, swollen stem (Angiopteris, Marattia), or arise from a more or less horizontal rhizome (Danaea, Kaulfussia).

marattia's Meaning':

type genus of the Marattiaceae: ferns having the sporangia fused together in two rows