sessile; bracts lanceolate or elliptic-lanceolate, acute, glandular-denticulate or 

 even lacerate, glabrous; inflorescence rather open, the glomerules few but many- 

 flowered; corolla white, funnelform, the lobes 1.8-2 mm. long, throat 1.3-1.5 mm. 

 long, with basal gibbosity, the tube (below gibbosity) 1.4-1.5 mm. long; stamens 

 and style exserted; fruit narrowly ellipsoid, 1.7 mm. long, 0.6 mm. wide, rather 

 sparsely pubescent with straight erect hairs; fertile cell somewhat flattened dorsally, 

 with noticeable median line toward apex; sterile cells not diverging, their com- 

 bined width barely equaling that of the fertile cell. 



In sandy moist soil in post oak woods and in wet depressions in s.-cen. Tex,, 

 Mar.-May; endemic. 



4. Valerianella texana Dyal. 



Stem 1-3 dm. tall, rather frail, pubescent on the angles; leaves hairy on the 

 margin and upper surface, the lower spatulate, the upper oblong-ovate, sessile; 

 bracts lanceolate, ciliate; inflorescence loosely and corymbosely cymose; corolla 

 white, funnelform, 2-2.5 mm. long; tube slender, about as long as the limb; 

 throat rather wide without a conspicuous gibbosity at its base; stamens and style 

 exserted; stigma lobes short; fruit yellowish, laterally compressed, less than 1 mm. 

 long, with four lines of short capitate hairs (2 down the dorsal side of the fertile 

 cell and one down the ventral side of each sterile cell) ; fertile cell narrowly oblong, 

 produced at apex into a prominent tooth, much narrower than the combined 

 width of the sterile cells which have a narrow deep groove between them with a 

 prominent nerve down the middle of the groove. 



Wet stream banks in the vicinity of Kini Creek, Gillespie Co., Tex., spring, 

 endemic. 



5. Valerianella stenocarpa (Engelm.) Krok var. stenocarpa. Fig. 733. 



Stem 1-5 dm. tall, pubescent on the angles; leaves ciliate, the lower spatulate 

 with their bases connate, entire, the upper usually ovate with a few teeth on 

 each side near the base; bracts lanceolate, glabrous or rarely weakly glandularly 

 fimbriate-serrulate toward the tip; inflorescence loose, corymbose-cymose; corolla 

 white, 2-3 mm. long, funnelform; tube short, less than one half the length of 

 the limb, a saccate gibbosity at the base of the throat on the ventral side; stamens 

 and style exserted; stigma lobes short; fruit yellowish, narrowly ellipsoid, 1.5-2.3 

 mm. long, more than twice as long as wide, glabrous or pubescent; fertile cell 

 wider than the combined width of the sterile cells, rounded on the dorsal side, 

 sometimes with a weak nerve down the middle; groove between the slender 

 sterile cells narrow, rarely with a rather prominent nerve down the middle. 



Rocky ledges and low moist grounds, wet seepage banks, often along rivers, 

 in cen. and e. Tex., Mar.-May, (?) endemic. 



Var. parviflora Dyal. Corolla white, funnelform, 1.5 mm. long; fruit slightly 

 smaller than in var. stenocarpa. Light soils, barrens, and prairies, sometimes in 

 periodically inundated places, in e. and s.e. Tex., west to Calhoun, Bexar and 

 Dallas COS. and Okla. {Waterfall), Mar.-May; also Mo. 



6. Valerianella radiata (L.) Dufr. var. radiata. Fig. 733. 



Stem 1.5-6 dm. tall, rather stout and pubescent along the angles; leaves hairy 

 on the margins and on the midrib on the lower surface, the lower oblong-spatu- 

 late, connate, entire, the upper oblong-ovate, often coarsely toothed at the base, 

 not connate; bracts lanceolate, the outer ones slightly ciliate, the inner glabrous; 

 inflorescence loose, corymbosely cymose; corolla white, funnelform, 1.5-2 mm. 

 long; tube shorter than the limb, a saccate gibbosity at the base of the throat 

 on the ventral side; stamens and style exserted; stigma lobes short; fruit yellowish, 

 ovoid, about 2 mm. long, glabrous or pubescent; fertile cell as broad as or broader 



1568 



