PITTIER PLANTS FROM COLOMBIA AND CENTRAL AMERICA. 107 



outside, smooth inside, greenish yellow, the lobes longitudinally striate with darker 

 lines, narrowly triangular-acuminate, 15 to 16 mm. long, 5 to 6 mm. broad at the base. 

 Exterior corona reduced to a narrow, membranous, filiate ring inserted on the throat 

 of the corolla; inner corona formed of 5 fleshy, brownish scales, connected together by 

 alternating folds and imbricate. Gynostegium stipitate. Appendages of the anthers 

 more or less spreading, dark-colored. Retinaculum about 0.22 mm. long; caudicles 

 about 0.3 mm. long; pollinia pear-Hhaped, about 1.2 mm. long, 0.4 mm. broad. Stigma 

 pentagonal, concave. 



Follicles not known. 



Costa Rica : Over bushes at Jerico Farm, Llanos de Santa Clara, altitude 300 meters, 

 Pittier, flowers, July, 1899 (Institulo ffs.-geog. Costa Rica no. 13416). 



Fig. IS 



-Flower parts of (ionolnbus dubiux. a, Part of calyx, showing glands; 6, gynoslegium from above; 

 c , translatorium. a, b, Scale X; c , scale 30. 



Mr. Donnell Smith identifies this plant with G. striatus Mart. & Gal." Although the 

 very incomplete description of this latter species applies in a general way to our 

 specimens, the identity of the two is very doubtful. (Jonolobus striatus is a native of 

 comparatively cold, dry, and mountainous country north of Mexico City and has not 

 been found in the intervening region, whereas the Costa Rican plant proceeds from 

 the humid and warm plains of Santa Clara. The presence of the same species at two 

 stations at once so far apart and so distinct as to their climate would be quite excep- 

 tional. To remain on the safer side, we shall then consider our plant as a distinct 

 Bpecies, until a direct comparison of types can be effected. 



"See Bull. Acad. Sci. Belg. II 1 : 365. 1844. 



