WebPsilotum nudum (L.) P.Beauv. APNI* Synonyms: Psilotum flabellatum Gand. APNI* Psilotum nudum var. fallacinum (Domin) Domin APNI* . Description: Erect to somewhat pendent terrestrial or rarely epiphytic plant; aerial stems yellow-green, much-branched towards the tips, 15–60 cm long, ridged, ± circular to triangular in section; ultimate … WebGeneral characteristics of Pterophyta. Since Pterophyra have lignified xylem vessels and phloem vessels they belong to the vascular plants, in contrast to algae (e.g. Laminaria, …
Psilophyta - uni-hamburg.de
WebOther articles where Tmesipteris is discussed: plant: Order Psilotales: …two living genera (Psilotum and Tmesipteris) and several species that are restricted to the subtropics. This unusual group of small herbaceous plants is characterized by a leafless and rootless body possessing a stem that exhibits a primitive dichotomous type of branching: it forks into … WebTry the world's fastest, smartest dictionary: Start typing a word and you'll see the definition. Unlike most online dictionaries, we want you to find your word's meaning quickly. We don't care how many ads you see or how many pages you view. In fact, most of the time you'll find the word you are looking for after typing only one or two letters. sytner weston super mare
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WebMar 12, 2024 · 92. Bryophytes are dependent on water because. (a) water is essential for fertilization for their homosporous nature. (b) water is essential for their vegetative propagation. (c) the sperms can easily reach up to egg in the archegonium. (d) archegonium has to remain filled with water for fertilization. WebApr 3, 2024 · 2. Division Psilophyta พืชที่มีท่อลำเลียงชั้นต่ำ ไม่มีใบและรากที่แท้จริง ได้แก่ หวายทะนอย (Psilotum) WebMar 27, 2015 · Psilophyta(Whisk ferns) Two genera (Psilotum and Tmesipteris) and 4-8 species • Most primitive • Rootless with rhizoids • Leaves often absent • Dichotomously branched photosynthetic stem • Protostele: is the condition where central core of xylem surrounded by phloem • Homosporous Synangium: trilocular structure that encloses ... sytnercheapleasing