598 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Rance: Southwestern New Mexico to Arizona and Mexico. 
New Mexico: Mangas Springs; Lordsburg; Big Hatchet Mountains. Dry hills and 
mesas. 
3. DIAPEDIUM Konig. 
Glabrous perennial herb with opposite petiolate lanceolate leaves and axillary 
few-flowered peduncles; flowers subtended by large cordate bracts; stamens 2, barely 
equaling the lips; ovules 2 in each cavity. 
1. Diapedium torreyi (A. Gray) Woot. & Standl. 
Dicliptera torreyi A, Gray, Proc. Amer. Acad. 20: 309, 1885. 
Type LocaLity: Arizona. 
Ranae: Southwestern New Mexico and adjacent Arizona and Mexico. 
New Mexico: Guadalupe Canyon ( Mearns 2037). 
4. CARLOWRIGHTIA A, Gray. 
Slender branched glabrous perennial herb with opposite linear leaves; flowers 
axillary; corolla deeply 4-parted, with a short tube; stamens 2, nearly equaling the 
corolla lobes; capsules ovoid, acuminate, on slender stipes; seeds few. 
1. Carlowrightia linearifolia (Torr.) A. Gray, Proc. Amer. Acad, 18: 364. 1877, 
Schaueria linearifolia Torr. U. S. & Mex. Bound. Bot. 123. 1859. 
TypE Locauity: ‘‘Rocks at the mouth of the Great cafion of the Rio Grande, and 
on the Burro mountains,’ Texas and New Mexico. 
Rana@e: Western Texas to southern Arizona and southward. 
New Mexico: Twenty miles north of Rincon; Dog Spring; mesa west of the Rio 
Grande, near Mesilla; Organ Mountains. Dry, rocky hills and mesas, in the Lower 
and Upper Sonoran zones. 
5. STENANDRIUM Nees. 
Perennial short-stemmed herb with hirsute foliage; leaves approximate, entire; 
flowers in terminal bracted spikes, rose purple; corolla with a slender tube and oblique 
5-lobed limb; stamens 4, included; ovules 2 in each cavity. 
1. Stenandrium barbatum Torr. & Gray, U. S. Rep. Expl. Miss. Pacif, 22: 168, 
pl. 4. 1855. 
TYPE Loca.ity: “On the Pecos,’’ Texas or New Mexico. 
Ranae: Southern New Mexico, western Texas, and northeastern Mexico. 
New Mexico: Guadalupe Mountains (Wooton). Dry hills, in the Lower Sonoran 
Zone. 
6. RUELLIA I. 
Low shrub, 30 cm. high or less, with thick obovate petiolate ciliate leaves and few 
solitary axillary flowers; calyx lobes linear; corolla white, with a long tube and a 
nearly regular limb; stamens 4, included; ovules 3 to 10 in each cavity. 
1. Ruellia parryi A. Gray, Syn. Fl. 2': 326. 1878. 
Dipteracanthus suffruticosus Torr. U.S, & Mex. Bound. Bot. 122. 1859, not Ruellia. 
suffruticosa Roxb. 1814. 
TyPE Locauity: Presidio del Norte, Texas. 
Rance: Western Texas and southern New Mexico to northeastern Mexico. 
New Mexico: Dark Canyon, Guadalupe Mountains (Wooton). Dry hills. 
