Nasu: Costa RICAN ORCHIDS 121 
CycnocuEes Rosstanum Rolfe, Gard. Chron. 69: 456. 1891 
On tree-trunk at border of forest, vicinity of Rio Reventazon, 
Turrialba, xo. 772. A most interesting find. Rolfe drew his 
description from material secured from a plant which flowered in 
the collection of Signor H. J. Ross, Poggio Gherardo, Florence, 
Italy, in 1889. This plant was purchased for C. Warscewiczii, 
quite another species with pure green staminate flowers, represented 
bya living plantin the collections of the New York Botanical Garden. 
The native country of the original plant of Cyenoches Rossianum 
Was not known, and it is interesting to have its home thus re- 
vealed. The plants which Mr. Maxon brought back with him 
have produced up to the present time only staminate flowers, 
which agree with the description given by Mr. Rolfe. 
The staminate racemes are long and slender, in the Costa 
Rican plant measuring up to 6 dm. long with the flowers rather 
Scattered. The sepals and petals are yellowish-green, heavily 
blotched with purple-brown, as described by Rolfe, who says 
further that the pistillate raceme he examined had but a single 
flower which was about twice the size of the staminate flowers and 
of a uniform green color with a slightly darker shade on the lip. 
XYLOBIUM FOVEATUM (Lindl.) Stein, Orchideenb. 597. 1892 
Navarro, wo. 674. This was originally described from plants 
Secured in Demerara. Cogniaux (Mart. Fl. Bras. 3°: 470) gives 
its range as extending to Venezuela, Peru and Colombia. While 
the Costa Rican material differs somewhat from the South Amer- 
ican plant, judging from descriptions, it seems best for the present 
to refer it to the same species. 
Maxillaria Valenzuelana (A. Rich.) 
Pleurothallis Valensuelana A. Rich. in Sagra, Hist. Cuba 11: 234 
1850. 
Dicrypta ividifolia Batem.; Loud. Hort. Brit. Sec. Add. Suppl. 
630. 1839. Name only. 
Maxillaria tridifolia Reichenb. f. Bonplandia 2: 16. 1854. 
On tree trunk, Cartago, mo. 53. Cogniaux (Mart. FI. Bras. 
3:7 8) gives the distribution of this plant as extending from Brazil 
to Colombia and Cuba. Its discovery in Costa Rica therefore ex- 
tends the range to the continent of North America. 
