ROBINSON AND GHEENMAN. — MEXICAN PLANTS. 41 



segments 5, liuear-attenuute, glandular-pubescent, U lines long: corolla 

 bluish white (in dried specimen) : tube slender, 4 to G lines long, about 

 equalling the 4 lobes : anther-cells equal and subcoutiguous, muticous : 

 capsule glabrous, half inch in length. — Collected by C. G. Pringle,-dry 

 slopes, Tomellin Caiion, Oaxaca, altitude a,.0OO feet, 30 November, 1895, 

 no. G261, A plant which with about equal propriety might be referred 

 to Diaiithera. 



Jacobinia candicans, Benth, & Hook. f. "Gen. ii. 1115" accord- 

 ing to Ilook. f. & Jacks. Ind. Kew. i. 1240. Dianthera candicans, 

 Benth. & Hook. f. "Gen. ii. 1113" according to Hemsl. Biol. Ceut.- 

 Am. Bot. ii. 517. Adhatoda candicans, Nees in DC. Prodr. xi. 396. 

 Jacobinia Mexicana, Hemsl. 1. c. 521, as to plants of Galeotti and of 

 Liebniann. Excellent and copious material of this doubtful plant has 

 now come to hand from the following sources. Vicinity of Cuicatlan, 

 Oaxaca, altitude 1,800 to 2,500 feet, E. W. Nelson, no. 1698, and in 

 same locality V. Gonzalez, no. 48 ; also in Tomellin Caiiou, altitude 

 2,500 feet, C. G. Pringle, nos. 5638, 6260. The plant is a shrub 3 to 5 

 feet high with the whole habit and inflorescence as well as corolla of 

 Jacobinia, to which it would seem best to refer it notwithstanding its 

 slightly disjoined anther cells. Indeed the very close habital resemblance 

 between this species and Jacobinia Mexicana has led to a confusion of 

 the two for Mr. Hemsley in the places cited ascribes Galeotti's no. 911 

 both to Dianthera candicans and Jacobinia Mexicana. The plants of 

 recent collection mentioned above correspond in all points to Liebmann's 

 specimen from Tehuacan, and differ much in calyx and bracts from 

 Seemann's plant of N. W. Mexico. In the latter 'plant (J. Mexicana, 

 Seem.) the bracts are minute, much shorter than the 5-toothed calyx. 

 In the former {J. candicans) the bracts about equal the calyx and this is 

 much more deeply 5-cleft. The corolla of J. candicans is bright scarlet 

 rather than purple as described by Nees. 



Oldenlandia xestosperma. Erect glabrous perennial, several- 

 stemmed from a slightly ligneous base : stems terete, moderately branched 

 above, 1 to 2 feet high : leaves linear, 1-nerved, an inch to an inch and 

 three fourths in length, less than a line in breadth : inflorescences termi- 

 nal few-flowered cymes; bracts small, subulate; pedicels filiform, 1 to 3 

 lines in length: flowers strongly heterogone-dimorphous : calyx-lobes in 

 anthesis but half line long, subulate, about equalling the tube : corolla 

 purplish, nigrescent in drying, 4 lines in length, gradually widened from 

 the base ; limb of 4 triangular erect teeth : capsule obovate, 2 lines in 

 length, entirely inferior, dehiscing to the base: seeds slightly angled, 



