Comprehensive Description
provided by North American Flora
Pontederia parviflora Alexander, sp. no v
Plant emersed, up to 7 dm. tall, the rootstock creeping in the mud; leaf blades ovate to ovate-cordate, up to 20 cm. long; stipules minutely mucronate; lower spathe-valve leaf-like, the upper one loosely sheathing, its upper margin spreading, 5-9 cm. long, abruptly caudate; inflorescence more or less villous with crisped, yellow hairs, the flowering portion 3-7 cm. long; perianth in the bud villous with yellow hairs, not glandular, white, its tube 5-6 mm long, its limb spreading, the lobes 6-7 mm. long, the three outer narrower than the inner, all narrowly elliptic to oblanceolate; filaments glabrous; anthers narrowly ovoid; stigma 3-6-cleft; fruit obliquely ovoid, 6-7 mm. long, the crest-ridges with angular divisions.
Floribus minoribus 1 cm. longis, villosis comosis croceis; fructu oblique ovoideo.
Type collected at Camino del Boticario, near Chepo, province of Panama, Panama. October, 1911, H. Pittier 4556. Cotype for fruit collected near Aguadulce, province <>t Code. Panama, in savannas near sea level, December 3-6, 1911, H. Pittier 4915. (Both in the Bntton Herb.. N. Y. Bot. Gard.)
Distribution: Panama; also in South America.
- bibliographic citation
- Albert Charles Smith, Harold Norman Moldenke, Edward Johnston Alexander. 1937. XYRIDALES. North American flora. vol 19(1). New York Botanical Garden, New York, NY