Hypophyllous

Hy`poph´yl`lous


a.1.(Bot.) Being or growing on the under side of a leaf, as the fruit dots of ferns.
References in periodicals archive ?
UREDINIA amphigenous, mostly hypophyllous, cinnamon brown, and scattered, rounded, 0.3-0.7 mm diameter, pulverulent.
UREDINIA mainly hypophyllous with spots surrounded by light green rings, mostly in groups, confluent, rounded, dark brown, erumpent.
Uredinia hypophyllous, yellowish, minute, covered with ruptured epidermis, pulverulent, scattered over the whole leaf surface, surrounded by numerous incurved paraphyses.
Telia hypophyllous, pulverulent, black, gregarious.
Leaves sessile to subsessile (petiole up to 0.3 cm long), glaucous on both surfaces, dark green above and pale below, producing a long ciliate fracture when broken perpendicular to the midvein; lamina (3) 5.8-13.5 cm long, (1.4) 2.5-3.5 (4) cm wide, elliptic-oblong, basally cordate, apically acute to obtuse through the loss of the mucro, with revolute margins and 2 or 3 small hypophyllous glands per side 3-5 mm from the margin and usually only visible with a hand lens; midvein obscure above, subprominent below, the lateral veins obscure on both surfaces or subprominent below.
Soris teleutosporiferis hypophyllous, filiformibus, brunneis, rectangularibus, 30-36 X 8-12 [micron]m; pariete flavide, 1 [micron]m crassa, aequaliter, uniporis germinationis subaequatorialibus.
Soris teleutosporiferis hypophyllous, ceraceis, albidis, rotundatis, subepidermalibus, 4-6 stratis sporis, cupulae formantis; teliosporis hyalinis, liberes, irregulariter dispositis, cuboideis vel elipsoideis, 24-31 X 11-15 [micron]m; pariete hialina, <1 [micron]m crassa, aequaliter; status germinationis evidentis.
La familia Marcgraviaceae se caracteriza por presentar dos tipos de nectarios, los cuales, segun la terminologia de Schmid (1988), reciben los nombres de nectarios extra-reproductivos laminales (= glandulas presentes en la superficie abaxial de las hojas = "hypophyllous glands") y nectarios reproductivos (bracteas nectariferas presentes en los pedicelos, en la base de estos, en el raquis o en la base de la flor).
Leaves petiolate, glaucous on both surfaces, dark green above, dull and paler below, in sicco greenish- or yellowish-brown above, yellowish-brown to dark reddish-brown below, producing a ciliate fracture when broken perpendicular to the midvein; petioles flattened or slightly canaliculate above, 5-8 mm long, 3-5 mm wide; lamina obovate-elliptic, occasionally somewhat asymmetrical, (12-) 14-18 cm long, 4.8-6.1 cm wide, basally obtuse or rounded to cordate, apically acute or emarginate through the loss of the mucro with slightly revolute margins; hypophyllous glands inconspicuous, few, minute, ca.
Leaves petiolate, somewhat glaucous and yellowish-brown above, ferrugineous-brown below in dried specimens, producing a ciliate fracture when broken perpendicular to the midvein; petiole stout, 5-7 mm long, 3-4 mm wide, flattened above; lamina obovate, 7.5-12.5 cm long, 4.5-6.7 cm wide, basally acute to slightly obtuse, apically obtuse to rounded or slightly acuminate, with slightly revolute margins and 3-4 medium to small hypophyllous glands per side 5-9 mm from the margin or seemingly absent and visible only with a hand lens; midvein impressed above, subprominent below and the lateral veins obscure on both surfaces or subprominent below.
Uredinia hypophyllous, scattered between veins, 0.3-0.8 mm wide, erumpent, powdery, without peridium, orange-yellowish fading to pale yellow; urediniospores 25-32 x 16-24 [micro]m, broadly ellipsoid to subglobose or angular, catenulate, coarsely verrucose, wall 1.5-2 [micro]m, with abundant capitate, annulated tubercles 1.5-3 [micro]m long and 1-2.5 [micro]m wide, germ pores 2 to 4, scattered, obscure.
Telia hypophyllous, in groups on orange pustules 3-8 mm diameter, sometimes following veins, infection sometimes causing distortion of apical leaves, erumpent, hemispheric, yellow-brown, 200-300 pm diameter, surrounded by host tissue.