267 
with umbel-like inflorescence matched the original of Ozxalis 
stricta. 
This disposes of one species, but there now remains the plant 
which has posed as O-ralis corniculata, as a state of O. corniculata, 
as a variety of O. corniculata and as O. stricta ; it is talland slender 
in habit and of a bright green color, with cymose inflorescence, 
smaller and more gradually narrowed capsules and villous pedicels. 
I cannot find an available published name for this species, and the 
only indication that it was noticed many years ago is the figure 4, 
on plate CCXXI, of Dillenius’ Hortus Elthamensis, the rest of the 
plate clearly being Oxalis stricta. This species may be designated 
Oxalis cymosa. 1 append a description of our two common 
species: 
Oxatis stricta L. Sp. Pl. 435. 1753. 
Annual, caulescent, normally low, stout, fleshy, pale-green, 
glabrous below, or more or less strigose. Stem simple and erect 
or usually branched at the base, the branches spreading, decum- 
bent or ascending, 1-4 dm. long, rather fleshy, usually green ; 
leaves 1.53.5 cm. in diameter, on petioles 3-9 cm. long; stipules 
a Narrow scarious dilatation of the base of the petiole ; leaflets 
broader than long, thick and fleshy, acutely notched at the apex, 
the cellular structure very prominent under a lens; inflorescence 
axillary, umbellate ; peduncles rather stout, 4-15 cm. long; peti- 
oles 1-2.5 cm. long, strigilose, at length deflexed, subtended by 
linear-subulate bracts ; flowers yellow, fragrant; sepals linear or 
lanceolate, about 5 mm. long, many-nerved, ciliolate, erect or as- 
cending; petals somewhat spatulate, about I cm. long, many- 
nerved, more or less inequilateral, undulate, commonly reddish at — 
the base, sometimes slightly emarginate at the apex ; capsule colum- — 
nar, 1.5-3 cm. long, abruptly narrowed at the apex; seeds obovoid 
or elliptic, about I mm. long, brown, angled, marked with inter- — 
rupted transverse ridges, the base rather acute. 
New England to Dakota and Colorado, south to the Gulf of 
Mexico. 
OXALIS CYMOSA N.. sp. =: 
Annual, caulescent, normally tall, slender, rather wiry, bright- _ 
green, glabrous or somewhat villous. Stem simple at the base, — 
more or less branched above, 1-7 dm. tall, erect or assurgent, — 
rarely decumbent at the base, at length woody, somewhat grooved, 
reddish or brownish; leaves 1-5 cm. to usually 3 or 4 cm. in dia- = 
meter, on slender petioles 3-7 cm. long; stipules almost wanting ; 
