Monographs Details: Guettarda hirsuta (Ruiz & Pav.) Pers.
Authority: Maguire, Bassett. 1972. The botany of the Guayana Highland--part IX. Mem. New York Bot. Gard. 23: 1-832.
Family:Rubiaceae
Description:Distribution and Ecology - Distribution. Peru, Ecuador, and Colombia. PERU. Tambillo, Jelski 96; Mendoza, Amazonas, alt 1600 m, Woytkowski 8208; Cutervo, Cayamarca, Raimondi 4472, 4776. ECUADOR. 1857-9, Spruce 5195. COLOMBIA. Putumayo: alta cuenca del Río Putumayo en el Valle de Sibundoy extremo E, junto a San Francisco, alt 2200 m, Cuatrecasas 11564; Antioquia: San Pedro, Bro. Daniel 2249.

Discussion:

Laugieria hirsuta R. & P. FI. 2: 22. pl. 145, fig. a. 1799.

Tournefortiopsis major Wernh., Jour. Bot. 53: 15. 1915.

Cordia poeppigii DC., Prodr. 9: 492. 1845.

Type. Chinchao, Huánuco, Peru, Ruiz.

I am tentatively retaining G. hirsuta and G. dependens as two closely related taxa. Standley (Field Mus. Publ. Bot. 13: 115. 1936) keys these two species on the basis of cell number in the fruits, but there is discrepancy between the number in the key stated for G. dependens (given under “Fruit 2-3-celled”) and in the description of G. dependens on p. 117, wherein the fruit is described as “3-celled, rarely 2- or 4-celled.” In Standley’s discussion of G. dependens, he states that the photo of the type specimen does not appear “specifically distinct from G. hirsuta.” The main differences between these taxa appears to be in the type of pubescence found on the lower midrib and lateral nerves of the leaf blades. A more exhaustive study of these taxa in the field may bring out additional differences or may ultimately show that only one taxon is represented in the series of collections. So far as the cell number of the ovary is concerned, my own examination of specimens reveals 2-4-celled ovaries in G. dependens, the 4-celled being rarer than those having 3- or 2-celled ovaries, and in G. hirsuta 4-celled ovaries appear to be commoner, with occasionally 5 cells present.

Distribution:Peru South America| Ecuador South America| Colombia South America|