112 MISSOURI BOTANICAL GARDEN. 
glands crescent shaped, horned; capsules subglobose; seeds vari- 
ously marked, more or less flattened or angled. 
++ Floral leaves acute or acuminate, very inequal; capsular angles 
almost acute; styles .5 mm. long; seeds tuberculate. 
E. exteua Linn. Sp. Plant. 456. 1753; Boiss. DC. Prod. 
15? : 139. 1862; Greene, Man. Bay Region 80. 1894. 
Tithymalus exiguus Hill, Hort. Kew. 172 (3). 1768; 
Lam. Fl. Fr. 3: 100. 1778. (fide Index Kewensis). 
Ksula exigua Haw. Pl. Suc. 158. 1812. Keraselma 
exigua Rafin. Fl. Tell. 4: 116. 1836. (fide Index Kew- 
ensis ). — Reichenb. Ic. Flor. Germ. pl. 4777. 
Simple or branched from the base, 1 to 2.5 dm. high, 
striate, branched below the umbel; rays 3 to 5, many 
times dichotomous, 2 to 3 cm. long; stem leaves 1 to 10 
mm. apart, entire or minutely tuburculate serrulate, acute 
or obtusish, sessile, 1 to 2 mm. wide,3 to 25 mm. 
long; umbel leaves similar, but dilated at the base; floral 
leaves lanceolate, connate on one side, sometimes with a 
large tooth on that side, 2 to 4 mm. wide, 6 to 12 mm. 
long; involucral lobes triangular ovate, truncate, acute or 
bidentate, smooth, erect or incurved; glands transversely 
oval, the two next the sinus larger; horns as long as the 
width of the gland, diverging from beneath the gland; 
fifth gland replaced by a very small lobe or none; 
bracts small, filiform, smooth; stamens 5 to 10; capsule 
ovoid, almost triangular, 1.5 to 2 mm. in diameter; styles 
free, bifid, clavate stigmatose; seeds quadrangular ovoid, 
slightly flattened, the inner faces concave, angles almost 
acute, 1.2 mm. long,.7 to .8 mm. wide, or as much as 1.5 mm. 
long in large plants ; caruncle small, low conical.—Sparingly 
introduced from Europe in a few localities. — Plate 28. 
Specimens examined from New Jersey (Buck, Kaighn’s Point, 1866) ; 
New York (Day, Buffalo, 1896; also as ballast plants about New York 
City); California (Leeds, Santa Clara, 1888). 
++ ++ Leaves obtuse; capsular angles rotund; styles 1 mm. long ; 
seeds smooth or microscopically tuberculate. 
EK. Herrerr Millspaugh, Bot. Gaz. 26: 268-270. f. 
28 
