SECTION XIIi. 
TRIANGULARES Rchb. f. 
(ALSO CALLED CAUDAT.E.) 
puts Section includes numerous species allied to M. triangularis. Their chief 
characteristics are, slender growth, the delicate membranous texture of the 
flowers, and in most cases, the shallowness of the tube and the great length of the tails. 
10 species figured : 
Masdevallia Arminii Rehb. f. 
caudata Lindl. (=A. Shuttleworthii Rchb.f.) 
Estradie Rehb. f. 
floribunda Lindl. (=JZ. Galeottiana Rich. et Gal., M. myrio- 
stigma Morren., et M. Lindeniana Rich. et Gal. 
hieroglyphica Rehb. f. 
ionocharis Rehb. f. 
triangularis Lindl. 
uniflora Ruiz et Pav. (not in cultivation.) 
Wagneriana Rehb. f. 
xanthina Rehb. f. 
Not in cultivation : 
M. erpansa Rchb.f: Otia Bot. Hamb. (1878 ), p. 16. 
hymenautha Rehb. f. Bonplandia LL, (1855), p. 225, 
inaequalis Rehb. f. Gard. Chron. 1574, pt. L., p. 372. 
tricolor Rehb. f. Gard. Chron. 1882, pt. I., p. 102. 
uniflora, (see Plate. ) 
celutina Rehb. f. Gard. Chron. 1876, pt. I1., p. 420. 
