422 FLORA OF TEXAS. 



0. ViRGixiAXUM, DC. Rough with appressed bristly 

 hairs; stem slender, sparingly branched ; leaves lanceolate 

 or oblong-lauceolate, obtuse or acute ; lobes of the corolla 

 lanceolate-subulate, bristly ; calyx-lohes 3-4 times as long 

 as the white polished nutlets. (0. hispidum, Michx.) 

 Dry pine-barrens. May and June. Stem l°-2° high; 

 leaves 2' long; corolla twice as long as the calyx; racemes 

 leafy. Perennial. 



LITHOSPERMUM, L. Gromwell. 



Calyx 5-parted, the lobes equal ; corolla funnel or salver 

 form, obtusely 5-lobed, smooth, gibbous or hairy in the 

 throat; anthers oblong, nearly sessile, included; stigma 

 capitate, somewhat 2-lobed; nutlets 1-4, ovate, stony, 

 truncate at the base. — Chiefly rough-hairy herbs, with red 

 roots, alternate entire leaves, and variously colored flowers 

 in leafy -bracted racemes or spikes. 



* Perennials ; nutlets smooth^ white. 



L. HiRTiJM, Lehm. Hispid with rigid glossy hairs ; stem 

 mostly simple, erect; leaves linear-lanceolate, obtuse, ses- 

 sile, the lowest scale-like, the floral ones ovate-lanceolate ; 

 corolla large, yellow, the tube hairy at the base within, 

 rather longer than the linear calyx-lobes ; nutlets ovate, 

 polished. (Batschia Gmelini, Michx.) Dry pine-barrens. 

 April and May. Stem l^'-lj" high; leaves l'-2'long; co- 

 rolla 6 "-8" long. 



L. CAXESCEXS, Lehm. Stem villous, erect, nearly sim- 

 ple ; leaves lanceolate, sessile, obtuse, somewhat silky with 

 appressed glossy hairs, the lowest small and scale-like; 

 corolla large, yellow, the tube 2-3 times as long as the 

 calyx. Dry soil. April and May. Stem G'-12' high ; co- 

 rolla smaller than in the preceding. 



