margin fertile

Listing 1 - 10 from 64 for margin fertile

Angiosperm Families - Degeneriaceae Bailey & Smith
... of one another; 3–6 whorled (?). Androecium including staminodes. Staminodes 3–10 (?); internal to the fertile stamens (located between the stamens and the gynoecium, similar to the stamens but fewer); non ... margins); about 20–32 ovuled. Placentation more or less marginal (a single row towards each margin of the carpel). Ovules long funicled (in one series), or sessile (in the other); with ...
delta-intkey.com

ACROSTICHACEAE [First Draft]
... 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 ...
hua.huh.harvard.edu

Adiantaceae [First Draft]
... -pinnate; pinnae 1-3 pairs, subopposite, obliquely spreading, rounded or subovato-roundded, upper margin rounded and with indistinct sinuses in middle, bases rounded or roundly cuneate, lateral ... broadly cuneate, or flabellately cuneate, outer and upper margines subrounded or roundly truncate, fertile parts shallowly sinuate, segments entire, sterile parts denticulate; upper pinnules same shape wth ...
hua.huh.harvard.edu

Athyriaceae [First Draft]
... subopposite or alternate, subsessile; upper pinnae pinnatipartite, toothed only on apices and acroscopic margin; veins pinnated, costules slightly tortuous, veinlets terminating in entire teeth. Laminae herbaceous ... parte. Rhizomes slender, creeping, sparsely clothed with brownish ovato-lanceolate scales. Fronds distant; fertile fronds 20--30 cm; stipes (10--)12--20 cm, stramineous, slim and fragile ...
hua.huh.harvard.edu

Dicksoniaceae [First Draft]
... Frond large, 2-3-pinnate-pinnatifid; veins forked or pinnate, free, ending near the margin. Sori marginal or submarginal, terminal on veinlets. Sori single one vein ends, submarginal, ... of rachilla; pinnule-segments slight falcate, apiculate, margins crenulate to serrulate-serrate; veins free, fertile ones simple, sterile simple or forked; laminae subcoriaceous, upper surface deep green, lower ...
hua.huh.harvard.edu

HEMIONITIDACEAE [First Draft]
... . Petiole chestnut-colored or purple-black, densely scaly and hairy as on rhizomes; petiole of fertile leaf usually 1—3 times length of that of sterile leaf. Blade ovate, oblong-ovate ... obtuse or rounded. Veins free, pinnately branched and divergent distally, or occasionally connected near leaf margin. Indusia absent. Sori linear, following entire course or distal portion of veins, covered by hairs ...
hua.huh.harvard.edu

Lindsaeaceae [First Draft]
... margin. (7) 7a. Pinnules obtusely acuminate at apex, fertile lobes entire at upper margin; sori continuous or nearly so-------------------6. L. cultrata 7b. Pinnules rounded or nearly truncate at apex, fertile lobes erose at upper margin; ...
hua.huh.harvard.edu

PARKERIACEAE [Draft]
... in axil of pinnae, small, ovate, brownish, resulting in juveniles through asexual propagation. Fertile frond similar in morph with sterile one, but normally taller, divided deeper and finer ... longitudinal ridges, deplanete when dry. Sori attached along costa, long linear, covered with reflexed margin of lobe. Sporangium big, subsessile; annulus broad, vertical, consisting of 0--70 incrassate cells ...
hua.huh.harvard.edu

Stenochlaenaceae [First Draft]
... at margin; fertile pinnae linear, entire at margin; veins anastomosing, forming a single row of areoles along each side of midrib, other veins free. Sporangia covering the whole of abaxial surface of fertile pinnae ... much in size and shape, sharply and irregularly serrate at margin, acuminate or sometimes caudate at apex, broadly cuneate at base; fertile pinnae 10--20 X 0.1--0.5 cm, linear ...
hua.huh.harvard.edu

Elaphoglossaceae [First Draft]
... leathery, the margin often thin and strongly costate, the costa prominent below; veins mostly immersed free, simply or forked and parallel almost to the margin; fertile fronds often longer, ... stipe, margin entire, costate and slightly reflexed, obtuse at apex; midrib obvious, prominent on both surfaces, grooved above, secondary veins unconspicuous, forking and terminating on the margin; fertile ...
hua.huh.harvard.edu