ROBINSON AND GREENMAN. — MEXICAN PLANTS. 41 
segments 9, linear-attenuate, glandular-pubescent, 1} lines long: corolla 
bluish white (in dried specimen): tube slender, 4 to 6 lines long, about 
equalling the 4 lobes: anther-cells equal and subcontiguous, muticous : 
capsule glabrous, half inch in length. — Collected by C. G. Pringle, dry 
slopes, Tomellin Cafion, Oaxaca, altitude 3,500 feet, 830 November, 1895, 
no. 6261. A plant which with about equal propriety might be referred 
to Dianthera, 
acobinia candicans, Benth. & Hook. f. “ Gen. ii. 1115” accord- 
ing to Hook. f. & Jacks. Ind. Kew. i. 1246. Dianthera candicans, 
Benth. & Hook. f. “Gen. ii. 1113” according to Hemsl. Biol. Cent.- 
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 
Liebmann. 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 Cajfion, 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 
een 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. eandicans) 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- 
=3 few-flowered cymes; bracts small, subulate; pedicels filiform, 1 to 3 
nes in length: flowers strongly heterogone-dimorphous: calyx-lobes in 
anthesis but half line long, subulate, about equalling the tube: corolla — 
es nigrescent in drying, 4 lines in length, gradually widened from 
, © base ; limb of 4 triangular erect teeth: capsule obovate, 2 lines in 
ength, entirely inferior, dehiscing to the base: seeds slightly angled, 
