I i i i 
Robinson and Greenman—Genus Lamourounia. 173 
dubious species, founded upon imperfect material, but, if correctly 
described, belonging here. 
= = Calyx costate; segments entire. 
a. Mexican species, 
17. L. renvrroria Mart. and Gal.1.c¢. Stem copiously branched 
above; branches simple, slender, ascending, very leafy: leaves 
narrow, lance-linear, 6 to 10 lines long, crenate-serrulate ; mar- 
gins recurved : inflorescence dense.—Walpers, Rep. vi, 652. L. 
linearis, Benth. 1. c., x, 541,—Valley of Mexico, Bourgeau, 1113; 
Schaffner, 368; Chiquihuite, Bilimek, 284; Tula, Berlandier, 
1261; San Luis Potosi, Parry and Palmer, 673. Originally col- 
lected in E, Oaxaca by Galeotti. 
b. South American species. 
18. L. virgata HBK. Leaves linear-lanceolate, sharply but 
inely serrate calyx-lobes lanceolate, acute, longer than the tube. 
on l. c. ii, 336, t. 167—Near Quito, Humboldt and Bon- 
pland, Hall, Jameson, Hartweg, Couthouy. 
19. L. Loxeysts Benth. Leaves linear-lanceolate: segments 
of the calyx scarcely longer than the tube.—PI. Hartw. 147, and 
- Prodr. x, 541.—Mountains of Loxa, United States of 
Columbia, Hartweg, 824, A doubtful species, intermediate be- 
Ween the preceding and following. 
0: L SERRATIFOLIA HBK. Leaves linear-lanceolate, as 
* + Posterior filaments glabrous at the summit and anantherous or nearly so. 
++ Leaves quite entire. 
Sama] 
++ ++ Leaves serrate, serrulate, or crenate. 
= Leaves an inch or more in length. 
L LANCEOLATA Benth. Whole plant nigrescent in web lan 
and j divaricate: leaves narrowly Schbetlets, finely, sharply 
cal ey serrate, 1 to 14 inches long, 14 to 2} lines wide: 
8 nd “onspicuously 12-costate; segments linear-lanceolate, acute, 
+ eta or even reflexed.—Benth. in ‘ = 
exico, Chiapas, Ghi t, 144, 705; Guate’ on- 
nell. ith’s, 398, ner ? esbr ? 7 jest a, 
