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Project Name Data (Last Modified On 7/31/2013)

Flora Data (Last Modified On 7/31/2013)
Species Citrullus lanatus (Thunb.) Mats. & Nakai
PlaceOfPublication Cat. Sem. Spor. Hort. Bot. Univ. Imp. Tokyo 30, no. 854. 1916.
Synonym Cucurbita citrullus L., Sp. PI. 1010. 1753. TYPE: without locality (LINN 1151.5, microfiche). Momordica lanata Thunb., Fl. Cap. 36. 1807. TYPE: not known. Citrullus vulgaris Schrad. ex Ecklon & Zeyh., Enum. PI. Afric. Austral. 279. 1834. TYPE: not known. Citrullus edulis Spach, Hist. Nat. Veg. Pahn. 5: 214. 1838. TYPE: not known. Colocynthis citrullus (L.) Kuntze, Rev. Gen. PI. 1: 256. 1891.
Description Annual, creeping, vines; stems lanate when young, later glabrescent. Leaves triangular ovate, 8-20 cm long, 5-15 cm wide, pinnatifid or bipinnatifid, the lobes broad, the sinuses rounded, the apex of the lobes rounded or acute, the base cordate, 3-veined, the margin undulate or irregularly toothed, pale green, charta- ceous, the upper surface sparsely lanate on the veins, glaucous, minutely pustu- late dotted, the lower surface somewhat lanate, especially on the veins; petioles villous or lanate, 3-8 cm long, striate; tendrils villous or lanate, 2- to 5-branched. Staminate flowers axillary, usually solitary, moderate in size; peduncles 2-4 cm long, villous or lanate; calyx broadly campanulate, ca. 1 cm long, green, villous, the lobes linear lanceolate, subequalling the tube; corolla campanulate, 2.5-3.0 cm long, the lobes ovate oblong, obtuse, yellow, the outer surface villous, the inner surface papillose, 5-nerved; filaments 2-3 mm long, stout, glabrate, slightly
Habit vines
Description diverging, the anthers ca. 3 mm long; pistillodium glanduliform. Pistillate flow- ers similarly disposed as the staminate flowers; calyx and corolla as in the stami- nate; ovary ovoid, the style column slender, the stigmas short, the lobes spread- ing; staminodia setiform, villous at the base. Fruits green, mottled, or striped with dark and light green, globose to oblong, white within, the outer rind hard, the inner flesh pink or yellow, smooth, glabrous; seeds numerous, elliptical, 3-12 mm long, dirty white to black or mottled, smooth or nearly so.
Common common watermelon sandia
Note native to Africa, is widely cultivated for its edible fruits. Although it is often spontaneous in waste ground, such plants rarely produce mature fruits. Numerous varieties differing widely in fruit char- acteristics are grown in Panama and elsewhere. Although this species is undoubtedly more common, only the following specimens have been examined from Panama.
Specimen PANAMA: N of El Llano, Gentry 5559 (F, GH, MO, NY). Sabanas, N of Panama City, Paul 548 (US). E edge of Panama City, Sauer 2320 (F).
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