192 TEXAS RESEARCH FOUNDATION: CONTRIBUTIONS, VOLUME 5 
All of these collections were cited by Mez in the original description. The 
orange-punctate flowers, and the small ovate orange-punctate anthers scarcely 
more than 1 mm. long are unusual. The species bears some resemblance to 
P. Rekoi Standl. and P. macronema Bullock of Mexico. 
Fendler 754 includes specimens collected in 1854-55 and 1856-57. I have 
designated the 1854-55 collection as the lectotype (GH) with one isotype (MO). 
