Rhynchospora comata (Link) Roem. & Schult.

Authority

Maguire, Bassett. 1972. The botany of the Guayana Highland--part IX. Mem. New York Bot. Gard. 23: 1-832.

Family

Cyperaceae

Scientific Name

Rhynchospora comata (Link) Roem. & Schult.

Description

Distribution and Ecology - Distribution. Trinidad, eastern Guayana Highland, and adjacent Guianas southwards to northeastern Brazil as far as to Bahia. TRINIDAD. Monos Island, Broadway in 1889 (NY), Arima, McLean in 1902 (NY), Arima, Britton et al 2407 (NY), Fondes Amandes, St. Ann’s, Broadway in 1892 (NY). VENEZUELA. "Lower Orinoco," Rusby & Squires in 1896 (NY); Bolívar: La Parguaza, between La Boea del Orinoco and El Carmen, Crusent 31 & 60 (MAR), Cordillera Epicara, Cerro Piton, 100 m alt, Maguire et al 53662 (NY), northernmost slopes of Cerro Baraguan, 100300 m alt, Wurdack & Monachino 41235 (NY), 2 km SE of Los Patos, ca 15 km N of Rio Supamo, 30 km S of El Manteco, 365 m alt, Steyermark 86924 (NY, VEN), on slopes of Cerro Uei, between the branches of Río Uei (tributary of Ríos Venamo and Cuyuní), 865-1050 m alt, Steyermark 104539 (NY, VEN); Amazonas: summit of Cerro Guanay, 1800 m alt, Maguire et al 31743 (NY), Great Rapids of the Orinoco, 1-2 km E of Hotel Amazonas, Puerto Ayacucho, bordering crystalline laja, 100-120 m alt, Maguire et al 36068 (NY). GUYANA. "British Guiana," without details, Schomburgk 676 (K, NY); Upper Mazaruni River Basin, Mt. Ayanganna, 1418 m alt, Tillett & Tillett 45121 (NY), Bartica, Leng in 1922 (NY), Penal Settlement, Hitchcock 17070 (NY, US), western extremity of Kanuku Mts., in drainage of Takutu River, 500 m alt, A. C. Smith 3174 (A, NY). SURINAME. Saramacca River, vicinity Camp II, Maguire 24138 (NY), Wilhelmina Gebergte, 9 km N of Lucie River, 12 km W of Oost River, 275 m alt, Maguire et al 54255 (NY), the same locality, 520 m alt, Maguire et al 54206 (NY), Wilhelmina Gebergte, 7 km SSW of Juliana Top, 12 km N of Lucie River, 450 m alt, Irwin et al 55314 (NY). BRAZIL. Territory of Roraima: Serra da Lua, Dormida, foothills of Serra da Lua, Prance et al 9293 (INPA, NY); Para: [without details,] Martius 3117 (M), Belem, Goeldi in 1914 (NY), Tapaná, near Pará, Killip & A. C. Smith 30341 (NY, US); Bahia: in sylvis primaeris ad Ferrades et Almade, Martius 3118 (M); Rio de Janeiro, Martius 3119 (M).

Discussion

Fig 6D, E.

Schoenus comatus Link, Enum. Hort. Bot. Berol. 1: 41. 1821. Type from Brazil: “Semina et specimina misit Sellow.” (B).

Rhynchospora bromoides Kunth, Enum. Pl. 2: 300. 1837. Type. Brasilia meridionalis, Sellow (B).

[Rhynchospora sylvatica Nees, Linnaea 9: 297. 1834, nomen nudum; FI. Brasil. 2(1): 144. 1842. Syntype. Bahia, Macrae in Herb. Lindley; Rio de Janeiro, Martius 3119 (M); Bahia ad Ferradas et Almada, Martius 3118 (M); Brasilia meridionalis, Sellow (B). Superfluous name published with earlier valid names.]

[Schoenus sylvaticus (Nees) Salzmann ex Schlechtendal, Bot. Zeit. 7: 167. 1849. Combination based on superfluous binomial, Rhynchospora sylvatica.]

Rhynchospora dietrichsenii Böckeler, Cyper. Nov. [= Beitr. Kennt. Cyper.] Heft 2: 25. 1890. Type. Dietrichsen 3399 from Bahia, Brazil (nv).

Type. Brazil, [without details,] Sellow (B) (nv).

Although Martius No. 3119 from Rio de Janeiro, which I examined at Munich herbarium, is without doubt R. comata, the occurrence of this species in Rio de Janeiro is very doubtful. The specimen may possibly have come from either Para or Bahia in reality.

Distribution

Distribution. Trinidad, eastern Guayana Highland, and adjacent Guianas southwards to northeastern Brazil as far as to Bahia.

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