Definition of Prothallus. Meaning of Prothallus. Synonyms of Prothallus

Here you will find one or more explanations in English for the word Prothallus. Also in the bottom left of the page several parts of wikipedia pages related to the word Prothallus and, of course, Prothallus synonyms and on the right images related to the word Prothallus.

Definition of Prothallus

Prothallus
Prothallus Pro*thal"lus, n.; pl. Prothalli. [NL., fr. Gr. ? before + ? a young shoot.] (Bot.) The minute primary growth from the spore of ferns and other Pteridophyta, which bears the true sexual organs; the o["o]phoric generation of ferns, etc.

Meaning of Prothallus from wikipedia

- given the right conditions, into the gametophyte stage, the prothallus. The prothallus develops independently for several w****s; it grows **** organs...
- Prothallus: A green, photosynthetic structure that is one cell thick, usually heart or kidney shaped, 3–10 mm long and 2–8 mm broad. The prothallus produces...
- products known as thysanophora unknowns, and the con****uous white, fibrous prothallus that encircles the thallus. The species was first formally described as...
- and grow into a rather incon****uous plant body called a prothallus. The haploid prothallus does not resemble the sporophyte, and as such ferns and their...
- produces spores) is followed by a haploid generation (the gametophyte or prothallus, which produces gametes). Pteridophytes differ from bryophytes in that...
- non-thallophyte plants – clubmosses, horsetails, and ferns is termed "prothallus". Homothallism Heterothallism Wengania Haupt, Arthur W. (1953). Plant...
- one gamete after the fertilization of the egg. 2.  (gymnosperms) The prothallus within the embryo sac. endospory The production of spores that germinate...
- separated, but are (or were)[citation needed] connected by an underlying prothallus or hypothallus. When a crustose lichen grows from a center and appears...
- Asplenium scolopendrium prothallus...
- California mountains.: 226  It has a black or bluish or greenish prothallus.: 226  The prothallus is usually absent when growing on rock.: 226  Each areole commonly...