Definition of Pinnules. Meaning of Pinnules. Synonyms of Pinnules

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

Definition of Pinnules

Pinnule
Pinnule Pin"nule, n. [L. pinnula, dim. of pinna feather: cf. F. pinnule.] 1. (Bot.) One of the small divisions of a decompound frond or leaf. See Illust. of Bipinnate leaf, under Bipinnate. 2. (Zo["o]l.) Any one of a series of small, slender organs, or parts, when arranged in rows so as to have a plumelike appearance; as, a pinnule of a gorgonia; the pinnules of a crinoid.

Meaning of Pinnules from wikipedia

- compound leaf, or a pinnate subdivision of a multipinnate leaf is called a pinnule or pinnula. Pinnate leaf of a legume with 10 leaflets Mimosa pudica folding...
- smaller jointed appendages known as "pinnules" which give them their feather-like appearance. Both arms and pinnules have tube feet along the margins of...
- borne naked on non-laminar pinnules, while Todea and Leptopteris (subtribe Todinae) bear sporangia naked on laminar pinnules. Ferns in this family are...
- the pinnules have a similar structure. The arms are very flexible and can be spread widely or coiled up. An ambulacral groove starts on each pinnule and...
- attaching to the underside of pinnules that were otherwise morphologically identical to the standard non-reproductive pinnules. The pollen-bearing organs...
- pinnae and sub-leaflets called pinnules. The pinnules of this species are lobed and toothed. Uniquely, the first pinnule closest to the stem on the lowest...
- Aporometra wilsoni. Plate XLVII shows three types of pinnules: first, second and distal pinnules (Figs 4-6), and pentacrinoid larvae (Figs 7-9) from youngest...
- with a number of feather-like arms. Each arm bore short branches known as pinnules and from these cirri were extended which sifted plankton from the water...
- which each pinna are divided are called pinnules, and the extensions of the rachis that support these pinnules, are called rachillae. Rarely, a frond may...
- of the bipinnate frond can be up to 23 feet seven meters) The ultimate pinnules are Y-shaped. Thirdly, this very con****uous plant escaped notice until...