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Project Name Data (Last Modified On 10/31/2012)

Flora Data (Last Modified On 10/31/2012)
PlaceOfPublication Sp. P1., ed. 1, 87. 1753
Reference Gen. P1., ed. 5, 38. 1754.
Synonym Cespa Hill, Herb. Brit. 1: P1. 66 (some copies). 1769. Nasmythia Huds. Fl. Ang., ed. 2, 414. 1778. Randalia Petiv. ex Desv., Ann. Sci. Nat. Paris I, 13:47, pl. 5, fig.2. 1828. Symphachne P. Beauv. ex Desv. op. cit. 47, pl. 5, fig. 3. 1828. Sphaerochloa P. Beauv. ex Desv. op. cit. 47. 1828. Sphoerochloa P. Beauv. op. cit. p1. 5, fig. I. 1828. Leucocephala Roxb. Fl. Ind. 3:612. 1832. Electrosperma F. Muell. Trans. Phil. Soc. Victoria 1-:23. 1855. Dichrolepis Welw. Apont. Phyt.-geogr. 542. 1859. Lasiolepis Bock. Flora 56:90. 1873.
Description Stems mostly very short, rarely elongate and equally covered with leaves throughout; leaves mostly tufted, membranous or very thin and pellucid, more or less linear or linear-lanceolate and grass-like, sessile and clasping at the base, very often fenestrate; florets dimerous or trimerous, the staminate mixed with the pistillate or segregated on separate heads or (rarely) on separate plants; perigonium almost always double; staminate florets with the sepals free at the base or often more or less connate into a split spathe, the 2 or 3 petals united below into a tube, free at the apex, the lobes usually bearing a small black gland on the inner surface near the apex; stamens twice as many as the sepals (or rarely 3) and exserted; anthers 4-celled, mostly black, composed of 2 thecae; pistillate florets with free or (rarely) spathaceous-connate sepals; petals free or rarely none, usually each bear- ing a small black gland slightly below the apex within; style-appendages none; stigmas 2 or 3, simple.
Key a. Both staminate and pistillate florets dimerous; stamens 4; stigmas 2; ovary 2-ovulate. b. Heads dark gray; peduncles to 9.5 cm. long; receptacular and in- volucral bractlets light brown, sharply acute or acuminate at the apex - -------- 1. E. SEEMANNII bb. Heads lightly flavescent-stramineous; peduncles to 19.5 cm. long; receptacular and involucral bractlets hyaline or flavescent, broadly rounded at the apex - -- 2. E. WOODSONIANUM aa. Both staminate and pistillate florets trimerous; stigmas 3; ovary 3- ovulate. b. Sepals of mature staminate florets not spathaceous; involucral bract- lets fuscous-nigrescent, obovate or subrotund -3. E. PANAMENSE bb. Sepals of mature staminate florets connate into a split spathe; in- volucral bractlets light-stramineous, ovate -4. E. WILLIAMS1I
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