|
(Last Modified On 3/20/2013)
|
|
|
|
(Last Modified On 3/20/2013)
|
|
Species
|
Dalechampia friedrichsthalii Muell.-Arg.
|
|
PlaceOfPublication
|
Flora 55: 45, 1872
|
|
Reference
|
Pax & Hoffm., Pflanzenreich 68 (IV, 147, XII): 52, 1919.
|
|
Description
|
Climbing vine; stems ca 2-2.5 mm thick, terete, minutely pubescent and also sparsely hirsute. Leaves alternate; stipules reflexed, lanceolate, acuminate, striate, minutely pubescent and ciliate, 8-12 mm long; petiole pubescent as the stem, 5.5-9.5 cm long; stipels lanceolate, pubescent, glandular at base, 1.8-3 mm long; blades chartaceous, ovate, abruptly short-acuminate, deeply cordate at base (basal lobes overlapping), sometimes with a prominent tooth 3-5 mm long on one side, sparsely hirsute above, closely and minutely puberulous beneath, 7-14 cm long, 5-10 cm broad, the margins subentire (finely and inconspicuously dentate), the veins and veinlets very prominently raised beneath. Inflorescences axillary and solitary to leaves on the main stem, the involucre terminating a peduncle-like branch 7.5-10 cm long; leaf at base of peduncle with caducous blade, represented only by stipules; true peduncle only 1-2 cm long, hirsute above. Involucral bracts evidently pale at anthesis, ovate, shallowly 3-lobed at the tip, the middle lobe cuspidate-acuminate, ca 8-9 mm long, the blade becoming ca 3 cm long, margins lacerate, minutely pubescent and also hispid (especially on veins and lobes), 5-veined at the base and contracted into a thick petiole ca 1.5-2 mm long; stipules subequal, pubescent and hispid-ciliate, 12-13 mm long, 3.5-5 mm broad. Pistil- late cymule with 2 adaxial bractlets, discrete, asymmetrically obovate, obscurely toothed, 5-5.5 mm long, the margins hispid-ciliate but not glandular; abaxial bractlet broadly ovate-reniform, ca 4.5 mm long, over 6 mm broad, crenate-toothed, pubescent as the adaxial bractlets. Staminate cymule with peduncle stout, min- utely pubescent, ca 1.5-2 mm long; involucel of 4 distinct, broadly imbricate, firmly chartaceous concave bracts, each ca 4-5 mm high and 7-8 mm broad; dc flowers ca 10; ceriferous bractlets conspicuously fimbriate distally. Staminate flowers with pedicels 2-3 mm long, hispidulous, articulate near the top; buds ca 1.5-2.5 mm in diam; sepals 4 or 5; stamens (18-)25-33, the staminal column 1.3-2 mm long, hispidulous. Pistillate flowers with sepals 5-8, ovate-oblong, lacerate- fimbriate (but rachis broader than lobes), densely pubescent, 1.7-2.2 mm long at anthesis; ovary deeply 3-lobed, minutely short-hispidulous, the style slender, antrorsely minutely hispidulous below, 9.5-10 mm long, slightly dilated distally into a concave stigma 1-1.2 mm across. Capsules with cocci (ex Pax & Hoffmann) 8 mm long; seeds ca 4 mm across, slightly ruguloise, mottled.
|
|
Habit
|
vine
|
|
Distribution
|
Known only from two collections, one in Costa Rica, incorrectly cited as Guatemala by Mueller, the other the Panamanian collection cited below.
|
|
Specimen
|
COLON: Rio Fato, Pittier 3866 (GH, NY, US).
|
|
Note
|
This evidently rare species also belongs in sect. Dioscoreifolieae and is ob- viously related to D. dioscoreifolia, but not closely so. The much longer hy- popodium, more short-petiolate involucral bracts, and longer styles with smaller stigmas clearly set D. friedrichsthalii apart.
|
|
Tag
|
|
|
|
Project Name
|
|
Tag
|
|
|
|