NEW OR NOTEWORTHY ORCHIDS 
differs from it in having glabrous ovaries, nearly smooth dif¬ 
ferently colored flowers and different auricles at the base 
of the labellum. [Fig. 3: 1, base of plant natural size. 
2, raceme Yi natural size. 3, flower with perianth segments 
spread apart to show side view of column and labellum, 
somewhat enlarged. 4, labellum natural size. 5, column 
and anther X 1 M-] 
Costa Rica, Province of Cartago, Cerro de La Carpin- 
tera, Paul C. Standley 34429, February 1924. 1500-1850 me¬ 
ters altitude. On mossy tree trunk; leaves green; inflores¬ 
cence pale yellow throughout. (Type in Herb. Ames No. 
29737.) 
Malaxis boliviana (Schltr.) Ames comb. nov. 
Microstylis boliviana Schltr. in Fedde Report. 10 (1912) 
448. 
Bolivia, Unduavi, H. H. Rusby 2797, October 1885. 
8000 feet altitude. 
Stelis Cooperi Schltr. in Fedde Report. 3 (1907) 276. 
Stelis elliptica Ames & Schweinf. in Ames Sched. Orch. 
8 (1925) 16. 
Recent collections made in Costa Rica by Paul C. Stand- 
ley indicate that Stelis Cooperi Schltr. is an extremely vari¬ 
able species which includes S. elliptica Ames & Schweinf. 
Costa Rica, Province of San Jose, La Palma, Paul C. 
Standley 33215, 38125, March 17, 1924. About 1600 meters 
altitude: Province of Cartago, Cerro de La Carpintera, 
Standley 34488, February 1924. 1500-1850 meters altitude: 
Province of San Jose, La Hondura, Standley 36307, March 
2-4, 1924. 1300-1700 meters altitude: Province of Cartago, 
Alto de La Estrella, Standley 39114, 39142, 39582, 39586, 
39592, March 26, 27, 1924. 
Stelis nubis Ames sp. nov. Caules secundarii caespi- 
tosi, vaginati, vaginis laxe adpressis elongatis tubulatis, 
monophylli. Folia caulibus secundariis breviora, coriacea, 
anguste elliptica, utrinque attenuata, apice bidentata, nervo 
