Peru: Department of Ancash, Province of Bolognesi, Chupa, moun- 
tain near Aquia, 3200-3250 meters altitude, on stony soil, ‘‘rojo os- 
99 
curas,’’ called ‘‘michimichi,’? May 18, 1950, Ramon Ferreyra 7546. 
Trichoceros parviflorus Humboldt, Bonpland & 
Kunth Nov. Gen. & Sp. 1 (1816) 887, t. 76.—Lindley 
Gen. & Sp. Orch. (1883) 174.—Reichenbach filius in 
Xen. Orch. 1 (1854) 21, t. 9, figs. 1; II, 1-6. 
Trichoceros armillatus Reichenbach filius in Bonpl. 4 
(1856) 212; in Xen. Orch. 1 (1858) 281, t. 97, fig. V. 
Trichoceros muscifer (as muscifera) Kriinzlin in Engler 
Bot. Jahrb. 37 (1906) 387. 
As was pointed out by Reichenbach filius (in Walp. 
Ann. 8 (1852) 568, sub Hofmeisterella) the organs which 
were described and illustrated as antenna-like processes 
of the column in T’richoceros parviflorus, the type of its 
genus, do not belong to the column, but are in reality 
lateral lobes of the lip. 
The concept T'richoceros armillatus is said to vary from 
the allied 7°. parviflorus by having the mid-lobe of the 
lip somewhat calceolate or lightly concave, a character 
which is indicated in the illustration. Furthermore, the 
sepals are described as carinate without; the species is 
relatively small and bears only three flowers. 
Whereas the lip of 7. parviflorus, in the numerous 
collections of that widespread species, is generally flat or 
even convex, in occasional specimens the lip has the lat- 
eral margins more or less involute, particularly in the 
freshly opened flowers, and thus a lightly concave condi- 
tion prevails. Also, the lateral sepals of 7° parviflorus 
seem to be sometimes more or less carinate. 
It appears reasonable, therefore, to regard 7°. armilla- 
tus as referable to the variable 7°. parviflorus, of which 
small, few-flowered forms are seen intermixed with the 
larger plants. 
The plant described as T'richoceros muscifer was al- 
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