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fertile pinnae

Listing 1 - 10 from 20 for fertile pinnae

ACROSTICHACEAE [First Draft]
... pinnae fertile only. Lamina 1-pinnate, firmly herbaceous, chartaceous, or coriaceous, glabrous on both surfaces; sterile pinnae lanceolate or tough-shaped to elongate-oblong, obtuse or acuminate at apex, entire at margin; fertile pinnae ...
hua.huh.harvard.edu

Adiantaceae [First Draft]
... pinnae nearly same sizes, 1.1-1.6 X 1.5-2 cm, roundly flabellate or rotound, bases symmetry roundly cunneate or rounded, bilateral siders entire, upper margins rounded, fertile pinnae with 2-5 shallow sinuses, denticulate on sterile parts; sterile pinnae denticulate on upper margins; upper pinnae and terminal pinnae all same shape with lower ...
hua.huh.harvard.edu
More from this site

Images accompanying the Flora of Roosevelt
... fertile frond (new and old) fertile frond pinnae fertile frond pinna magnified Onoclea sensibilis sterile frond overwintered fertile frond Osmunda cinnamomea sterile frond fertile frond in situ Osmunda regalis var. spectabilis in situ (young) pinna pinnulae fertile pinnae fertile ...
pluto.njcc.com

Hardy Ferns:
... Consumer Hort Zones: 3-10 Height: 2 to 6' Deciduous/Evergreen: Deciduous Fronds: Bipinnate blade; pinnae resemble locust tree leaves; only a few scattered hairs; fronds are pale pink as they ... tip; stipe is rounded with slightly grooved face; congested cluster of bead-like sori on fertile pinnae at tip of fronds Comments: Easy to grow; naturally occurs in swamps and wet sites ...
www.ces.ncsu.edu

The Ferns of West Virginia
... . Well, there are two reasons and they both involve the individual pinnae or leaf blades on the frond. If you hold them horizontally ... bearing) grow for a while and then stop, produce spore bearing fertile pinnae and then start growing in the sterile mode again. Osmunda claytoniana ... the royal fern can be easily identified as it produces its fertile spores at the tip of its fronds. Osmunda regalis is ...
www.gardenweb.com

San Diego Fern Society Fern Catalog
... leaves. The upper part of the fronds have ribbon-like fertile pinnae, about twice as long as the sterile segments. A rich, ... to perhaps 60 in high. It is dimorphic with the fertile pinnae highly contracted. Young growth is bright red. It grows on ... on location. It is dimorphic, fronds being either sterile or fertile. The fertile pinnae are highly contracted. Young growth is bright red making it ...
www.sdfern.com

Key to Native and Naturalized Genera of Ingeae
... to lvs. 23. Stem-growth differentiated into flowerless long-shoots and fertile lateral branchlets often contracted into stemless brachyblasts; fls of each capitulum ... tubular.......................Cojoba 37. Receptacle of unit inflorescences linear or linear-clavate. 42. Pinnae 1-jug.; intrastaminal disc around ovary; local astride Brazil-Bolivia boundary.................................. ........ ...
sciweb.nybg.org

Hardy Ferns:
... at the base; fertile fronds are taller, more rigid, more erect, constricted at tip and die in winter; sterile fronds are smaller and less erect and remain evergreen; pinnae are auricled with ...
www.ces.ncsu.edu

Fern notes
... stout central petiole, part of which forms the rachis from which arise the leaflets or pinnae. B. The arrangement of the vascular tissue in ferns is highly variable, but distinct for ... Spores borne in sporangia - usually on undersurface of the leaf. Not all leaves are fertile, and the fertile leaves may be very different from the vegetative forms. Actual distribution and form of ...
www.cs.cuc.edu

Cycad Society SA: Encephalartos horridus
... colour. The pinnae at the middle of the leaf are approximately 10cm long and 2,5cm broad. In drier, less fertile areas the ... areas where the conditions are closer to those in the fertile Uitenhage area. The dwarf plants seem to differ from the typical ... . The vast majority of plants occur in the drier but more fertile areas where they grow amongst plants such as the indigenous spekboom (Portulacaria ...
www.cycadsociety.org




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