WebbStudy Taxonomy CA Plants Chapter 4 Ferns flashcards from Jennifer McGruter's class online, or in Brainscape' s iPhone ... Stipe - term for a fern petiole. Pinna - term for first discrete leaflets or leaf divisions of a fern leaf. Pinnule - term for the ultimate leaftlet or leaf division of a fern leaf. 25 Q WebbA frond, pinna, pinnule or pinnulet is considered to be further divided when the division extends to at least three-quarters of the way from the margin to the midrib. Where the …
Taxonomy CA Plants Chapter 4 Ferns Flashcards Preview
Webb27 jan. 2024 · Ferns are a group of seedless, vascular plants. They are the second most diverse group of plants after seed plants with an estimated 20,000 species. They occupy a wide range of habitats from ... Webb4 sep. 2013 · Experimental studies of fern leaves have investigated the growth of heteroblastic leaf sequences, cataphylls, and simple and compound leaves ( Wardlaw, 1963; White, 1971 ). Here we will focus on leaf-development studies designed to understand phyllotaxy, adaxial/abaxial identity, and when and how a leaf is determined. dod カマボコテント 3m
Ferns ClipArt ETC - University of South Florida
WebbA few genera of ferns (e.g., sword ferns, Nephrolepis; Jamesonia; Salpichlaena; and climbing ferns, Lygodium) have members with more or less indeterminate (i.e., continuous) leaf growth accomplished by … Botanically, pinnation is an arrangement of discrete structures (such as leaflets, veins, lobes, branches, or appendages) arising at multiple points along a common axis. For example, once-divided leaf blades having leaflets arranged on both sides of a rachis are pinnately compound leaves. Many palms (notably the feather palms) and most cycads and grevilleas have pinnately divided leaves. Most spec… WebbThe pinnules are alternately arranged and pecopterid-type with pinnate venation. Fertile pinnules show recurved margins and abaxially bear a row of synangia on each side of the midvein. Synangia ... dod カマボコテント 3l