TROPICAL AMERICAN ORCHIDS 
Pleurothallis Johnsonii Ames Sched. Orch. 2 (1923) 
21 . 
Plate 11: 1, labellum outspread X 4. 2, petal X 2%. 
3, lateral sepals X iK- 
Pleurothallis monstrabilis Ames Sched. Orch. 6 
(1923) 63. 
Plate 7; 1, labellum from the side X 8. 2, column X 7. 
3, petal X 8. 4, labellum X 8. 
Pleurothallis Nelsonii Ames Sched. Orch. 4 (1923) 22. 
Plate 16: 4, lateral sepals X 2%. 2, labellum with basal 
lobes spread out X 8. 3, labellum with basal lobes in 
natural position X 8. 4, column X 5, petal X 2^. 
6, dorsal sepal X 2%. 
Pleurothallis palliolata Ames in Proc. Biol. Soc. 
Wash. 35 (1922) 86. 
Plate 9: 1, labellum X 3)^. 2, petal X 4. 
Pleurothallis peperomioides Ames Sched. Orch. 6 
(1923) 64. 
Plate 4: 1, flower (one half removed) X 4. 2, labellum 
X 5. 
Pleurothallis peraltensis Ames Sched. Orch. 6 (1923) 
65. 
Plate 11: 1, labellum X 8. 2, petal X 6. 3, lateral 
sepals X 4. 4, column X 8. 
Pleurothallis peregrina Ames Sched. Orch. 6 (1923) 
67. 
Plate 18: 1, petal X 5. 2, column and labellum X 3. 
3, labellum X 4]^. 4, flower X 2. 
Pleurothallis pergrata Ames Sched. Orch. 4 (1923) 
24. 
Plate 6: 1, petal X 3. 2, column X 8. 3, lateral 
sepals X 2. 4, dorsal sepal X 2. 5, labellum X 5. 
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