- prothallial
- pro·thal·li·al
English syllables. 2014.
prothallial
Look at other dictionaries:
prothallial — See prothallus. * * * … Universalium
prothallial — … Useful english dictionary
prothallial cell — noun : one of the cells produced by the first division of the microspore in a gymnosperm and believed to be a vestige related to the fern prothallus … Useful english dictionary
prothallium — prothallial, prothallic, prothalline /proh thal een, uyn/, adj. prothalloid, adj. /proh thal ee euhm/, n., pl. prothallia / thal ee euh/. 1. Bot. the gametophyte of ferns and related plants. 2. the analogous rudimentary gametophyte of seed… … Universalium
conifer — /koh neuh feuhr, kon euh /, n. 1. any of numerous, chiefly evergreen trees or shrubs of the class Coniferinae (or group Coniferales), including the pine, fir, spruce, and other cone bearing trees and shrubs, and also the yews and their allies… … Universalium
Drynaria — Basket ferns Temporal range: Piacenzian to Present … Wikipedia
fern — fernless, adj. fernlike, adj. /ferrn/, n. any seedless, nonflowering vascular plant of the class Filicinae, of tropical to temperate regions, characterized by true roots produced from a rhizome, triangular fronds that uncoil upward and have a… … Universalium
Fern — /ferrn/, n. a female given name. * * * Any of about 10,000–12,000 species (division Filicophyta) of nonflowering vascular plants that have true roots, stems, and complex leaves and reproduce by spores. Though ferns were once classified with the… … Universalium
plant development — Introduction a multiphasic process in which two distinct forms succeed each other in alternating generations. One form, created by the union of sexual cells (gametes (gamete)), contains two sets of similar chromosomes (diploid). At sexual… … Universalium
prothallus — [prəʊ θaləs] noun (plural prothalli lʌɪ, li:) Botany the gametophyte of ferns and related plants. Derivatives prothallial adjective Origin C19: mod. L., from pro 2 + Gk thallos green shoot … English new terms dictionary
