/ 
wl 
284. PROCEEDINGS OF THE AMERICAN ACADEMY. 
* Low slender creeping or erect annuals or perennials: flowers usually small on 
axillary or terminal pedicels or disposed in terminal cymes: capsule obcordate- 
depressed or oblong, emarginate, one, half to three fourths inferior; seeds deep- 
crateriform, open-crateriform, or oblong, peltate and slightly concave on the 
hilar surface, usually scrobiculate. 
+ Perennial by filiform rootstocks or creeping stems: flowers axillary or on 
slender terminal pedicels. 
H. czruea, L., Sp. Pl. i. 105, accredited to Mexico by Hemsley 
(Biol. Centr.-Am. Bot. ii. 30), is essentially a more northern plant, and 
probably does not extend into Mexico. 
H. serpyllacea, C. L. Smith, in herb. A low prostrate or creeping 
perennial: stems quadrangular, suffrutescent: branches ascending, 3 to 
5 cm. high, glabrous: leaves elliptic-ovate, short-petiolate, acute, gla-. 
brous on either surface, margin revolute, hispidulous; stipules 1-2-long- 
setiferous with several shorter glandular sete: flowers on short axillary 
pedicels: calyx-divisions lanceolate, acute, somewhat foliaceous, 2 to 4mm. 
long; corolla funnelform, about 1 cm. long ; lobes above and the throat 
pubescent: capsule oblong-obovate, 4 mm. long, one half as broad, about 
three fourths inferior ; seeds (6 or more) oblong-rotund or a little oblique, 
peltate, slightly concavo-convex, prominently scrobiculate. — Hedyotis 
serpyllacea, Schlecht. Linnea, ix. 599. Mallastoma Shannoni, Donnell 
Smith, Bot. Gaz. xviii. 203. — Jalapa, Schiede; C. L. Smith at Cruz 
Verde near Jalapa, altitude 2,150 m., no. 1486; Chiapas, Ghiesbreght, 
no. 814; Guatemala at San Miguel Uspantan, Depart. Quiché, altitude 
2,150 m., Heyde and Lux (no. 3176 of Donnell Smith’s sets). 
+ + Delicate annuals with minute white flowers and erect or spreading corolla- 
lobes ; seeds open-crateriform, oblong-rotund with a short hilar ridge. 
H. croftize, Britton & Rusby. A depressed annual: stems 1 to 2 
cm. long, hirtellous with a few scattered hairs, especially near the nodes: 
leaves oblanceolate, 5 to 15 mm. long, glabrous or with a few scattered 
hirsutish hairs on the midrib above, margins revolute, ciliate: stipules 
scarious, laciniate-dentate: flowers minute on short axillary pedicels : 
calyx including the ovary 2 mm. long, hirsute-pubescent ; lobes acute: 
corolla white, 3 mm. long; lobes above short-pubescent: capsule der 
ressed-globose, subdidymous, about one fourth inferior, the free goal el 
short-hirsute-pubescent : seeds open-crateriform, oblong-rotund with 4 
short hilar ridge. — Trans. N. Y. Acad. Sci. vii. 10. — San Diego, Duval 
Co., Texas, Miss Mary B. Croft, no. 85. 
_H. parviflora, Holzinger, in litt. A low annual, branching from 4 
: : ‘ single slender root: branches ascending, quadrangular, minutely hispidu- 
