192 Trans. Acad. Sci. of St. Louis. 



mm. long, hairy like the pedicels; corolla large, rose- 

 colored. — Southern Texas. 



This is conspicuously different from all the other Texas 

 species, except T. aiistralis, by the total absence of glandular 

 pubescence. 



Specimens examined: Texas: The only specimens seen are 

 those of the type, collected in Gillespie County by G. Jenny., 

 date of collection not given (M). 



15. Tradescantia humilis Rose. 



Tradescantia humilis Rose, Contr. Nat. Herb. 5 : 204. (1899) . 



A very distinct species, probably the center of a group 

 formed by the two last preceding species, and the two next 

 immediately following. — Southern Texas. Spring. 



Specimens examined : Texas: Industry, Austin County, 

 Wurzlow, 1895, type (N) ; April 6, 1897 (N) ; San Antonio, 

 Reverchon 4055, March 18, 1903 (M). 



16. Tradescantia Texana Bush sp. nov. 



Stems short, slender, weak, 1-2 dm. long, much branched, 

 decumbent, appressed-pilose with ascending hairs, dark yel- 

 lowish-green ; leaf -blades linear-lanceolate, flat, thin, ap- 

 pressed-hairy on both sides, 5-10 cm. long. Sheaths almost 

 none, hairy like the leaves; bracts of the involucre 2, broader 

 than the leaves, broadest about the middle, thin, flat, hairy 

 like the leaves, and with an aristate apex. Cymes 5- to 15- 

 flowered; pedicels 1-3 cm. long, glandular-pubescent; sepals 

 lanceolate, obtuse, 3-6 mm. long, densely glandular-pubes- 

 cent; corolla small, deep blue or purple. — Sandhills, Texas. 

 Summer. 



I have been constrained to consider this distinct from any 

 other species seen, by the peculiar appressed-hairy stems, not- 

 withstanding the fact that Dr. Rose referred the specimens 

 to his T. humilis, a very diiferent species. 



Specimens examined: Texas: The only specimens seen are 

 those of the type, collected at Austin, Travis County, by 

 E. Hall 669, May 18, 1872 (MN). 



