GREENMAN, — GENUS HOUSTONIA. 289 
basal leaves narrowly spatulate, 5 to 8 mm. long; the upper gradu- 
ally narrowed, hispidulous-puberulent above, glabrous beneath : pedicels 
elongated, filiform: flowers small, 4 to 6 mm. long: calyx-divisions 
short, scarcely 1 mm. in length, obtuse: corolla funnelform: capsule 
subglobose, 1} mm. long.— Contrib. U. S. Nat. Herb. i. 70.— Lower 
California, La Paz, Palmer, no. 31. 
H. asperuloides, Gray. Much branched from the base, 5 to 18 
cm. high: branches divaricately spreading and ascending, inconspicu- 
ously hispidulous-puberulent or quite glabrous : leaves linear or a little 
dilated above the middle, 5 to 24 mm. long, glabrous: flowers on slender 
filiform pedicels: calyx-lobes lance-linear, 11 to 2 mm. long, acute, 
slightly unequal: corolla funnelform, about 8 mm. long; tube below pu- 
berulent on either surface: capsule clavate-turbinate, tapering below; 
seeds oblong, peltate, somewhat concavo-convex, minutely scrobiculate. 
— Proc. Am. Acad. v.° 158; Rose, Contrib. U. S. Nat. Herb. i. 70. 
Hedyotis (Ericotis) asperuloides, Benth. Bot. Sulph. 19, t. 13. — Lower 
California, Cape St. Lucas, Xantus, no. 43; at La Paz, Palmer, nos. 24, 
31°; and by Brandegee, 5 February, 1890, the latter distributed as 
Hloustonia Brandegeana, Rose. 
H. arenaria, Rose. Erect or ascending, glabrous throughout : stems 
much branched: upper leaves linear or linear-lanceolate, 14 to 2 cm. 
long: stipules short, scarious, laciniate : inflorescence in loose terminal 
dichotomous cymes with the terminal flower sessile : calyx-lobes about 
1 mm. long, obtusish, inconspicuously serrulate on the margins: corolla 
about 4 mm. long, funnelform; lobes spreading, broadly ovate: capsule 
obcordate-compressed, 14 mm. long ; seeds oblong, peltate, slightly con- 
cavo-convex, scrobiculate.— Contrib. U. S. Nat. Herb. i. 70. — Lower 
California, La Paz, Palmer, no. 28; San Jose del Cabo, Brandegee, 
no. 261, 
+ + Low dichotomously branched perennials: stems becoming slightly woody 
below : ovary one half to three fourths inferior : capsule short-oblong or sub- 
globose. 
++ Stems rather leafy : capsule about 3 mm. long. 
H. Palmeri, Gray. Erect, profusely branched: branches hirtellous- 
puberulent or glabrous: leaves linear-filiform, glabrous, 5 to 18 mm. 
long ; stipules small, subtruncate, minutely dentate, or triangular-acute : 
pedicels slender, erect or ascending: flowers about 1 em. long, dimor- 
phous: calyx-divisions lance-linear, 2 mm. long, ciliate: corolla salver- 
shaped or slightly funnelform, upper portion of tube pubescent within: — 
‘free portion of capsule often hirtellous ; seeds open-crateriform, oblong- — 
VOL, xxx11.— 19 ; a 
