261 
ovate, 7-nerved. Petals reniform-ovate, very obtuse, 34 lin. in 
diameter. Lip like petals, but slightly smaller. 
Yungas, 1890 (458). | 
Allied to S. ¢riplicata Lindl. of the section Distichae, but readily 
distinguished by its narrower leaves and narrower and more acu- 
minate bracts. 
Stelis euspatha Reichb. f. in Bonplandia, 3: 225? Lindl. Fol. 
Orch. Stelis, 3. 
Yungas, 1890 (65 3). 
The buds or this specimen are very young, but so far as I can 
make out it belongs to this species, which. was based on a Boliv- 
ian plant collected by Bridges. ; 
STELIS BRITTONIANA Rolfe n. sp. - 
Stems 3 in. long. Leaves linear-oblong, obtuse, 2-4 in. long, 
5-7 lin. broad. Spikes one or two from the leaf axil, 3-5 in. long. 
Bracts broadly ovate, acute, 1 lin. long.  Pedicels a little longer 
thanbracts. Perianth 3 lin. in diameter, lobes elliptical-oblong, ob- 
tuse, 3-nerved. Petals broadly oblong, truncate, % lin. long. Lip 
similar to petals, but very obscurely 3-lobed. 
Yungas, 1890 (739). | 
A species obviously allied to the Venezuelan S. /utea Lindl., 
though the spikes are frequently more than one from each leaf- 
axil. The fact is Lindley's groups Monostachyae and Poly- 
stachyae cannot be retained, not being constant, even for the 
same species. The present plant may be distinguished from A 
lutea by its narrower sepals and different bracts. 
STELIS Rusgyı Rolfe n. sp. ds ne 
Stems 127-3 in. long. Leaves oblong or linear-obiong, obtuse, 
2-4 in. long, 5-11 lin. broad. Spike solitary, 4-6 in. long. Bracts 
ovate-lanceolate, acuminate, 3-4 lin. long. Pedicels 1% lin. long. 
Dorsal sepal ovate, subacute, 5-nerved, 3 lin. long, 2 lin. broad ; 
lateral ones connate into a broadly ovate 9-nerved body, 2% lin. 
ong, 2 lin. broad, apex minutely bidentate. Petals very broadly 
Ovate, obtuse, 3-nerved, 13 lin. long. Lip similar but rather 
smaller, with thicker nerves, and somewhat auricled at the sides. 
Yungas, 1890 (332) — Rusby’s 2758. 
A member of the section Dialissa, allied to the Peruvian S. 
truncata Lindl., which, however, is distinctly scandent, and has 
differently shaped petals and lip. ae 
