WebThe indusium is a thin membrane which covers the sorus, after a time it withers away. Here is a close up of a sorus showing you the sporangia. You can see the chain of cells which run in a line over the sporangium. This is the annulus which you have heard so much about. Here is a picture of sori with indusia which are umbrella shaped (peltate). WebIndusia, when present, are round-reniform or peltate. Sporangia are mixed, sporangial stalks in 3 rows, short to long. Spores are reniform and monolete. Chromosome numbers: x = 41 (40). Distribution of the Dryopteridaceae is pantropical to temperate.

Cyrtomium falcatum - Wikipedia

WebThe indusium is a thin membrane which covers the sorus, after a time it withers away. Here is a close up of a sorus showing you the sporangia. You can see the chain of cells which … WebIndusia, when present, are round-reniform or peltate. Sporangia are mixed, sporangial stalks in 3 rows, short to long. Spores are reniform and monolete. Chromosome … otc cvs blue shield

Dicksonia antarctica - Wikipedia

Webthe two indusia are separate from one another (Fig. 3), indusial growth gradually extends out to the sides of the sorus, and the indusia become fused at their base, forming a shallow collar around the receptacle base (Fig. 4). Subsequent to the fusion of the two indusia, the entire soriferous lobe undergoes a 90° shift in orientation to a posi- Web8 sep. 2015 · The cliff fern family Woodsiaceae has experienced frequent taxonomic changes at the familial and generic ranks since its establishment. The bulk of its species … WebDeparia acrostichoides, commonly called silvery glade fern or silvery spleenwort, is a perennial species of fern.Its range includes much of the eastern United States and Canada, from Ontario to Nova Scotia and Georgia to Louisiana, as well as eastern Asia in China, Russia, Japan and Korea. The name silvery comes from the fact that the indusia on the … rocketbook at walmart