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characters the awns of the anthers are very short. The fol- 
lowing collections are cited: 
Fiorrpa: ‘In paludosis, prope Tallahassee, Rugel, Mai, 
1843 ;” Chapman, no. 119 and other unnumbered collections. 
EvoLvuLus MOLLIS. 
Perennial, silky. Stems branched at the eee branches 
ascending or decumbent, 5-20 cm. long, slender: leaves al- 
ae blades linear to linear-oblong or liieai-lanecolate: 
2.5 cm. long, acute, sometimes scythe- shaped, entire, ses- 
aie or nearly so; pedicels shorter than the calices: calices 
more or less densely lanuginose, 4-6 mm. long; segments ob- 
long or lanceolate, 4-5 mm. long, slightly acuminate, erect 
or nearly so: corollas bluish, ro-14 mm. broad: capsules 
globose-ovoid, 4-5 mm. in diameter. 
In dry soil, Texas. Spring and summer. 
The separation of the above species serves as one step 
towards clearing up the chaotic conditions existing in various 
treatments of the genus volvulus. The species under con- 
sideration is related to &. p7/osus and like that plant, it has 
both surfaces of the leaf-blades hairy. The characters by 
which the two species differ may be contrasted thus: 
Pubescence shaggy: calyx-segments acute, erect or nearly so. E. pilosus. 
Pubescence silky: calyx-segments acuminate, tips spreading. £. mollis. 
I cite two widely distributed specimens : 
Curtiss, N. A. Pl., no. 2178; calcareous prairies, near 
Dallas, Texas, May and June, collected by J. Reverchon. 
ffeller, Pl. S. Texas, no. 1912, Kerrville, Kerr county, 
June 19-26, 1894, altitude 485-600 meters. 
DaASYSTOMA BIGNONIIFLORA. 
Perennial, glabrous. Stems erect, several dm. tall, branch- 
ing rather slender: leaves opposite, relatively small; blades 
spatulate, 1-5 cm. long, acute, entire, narrowed into short 
petioles : pedicels longer than the calyx-tubes: calices sur- 
passing the subtending petioles; tubes broadly campanulate ; 
segments linear or lanceolate, acuminate, about as long as the 
tube, acute: corollas 3.5-4.5 cm. long, ellow: capsules 
elliptic-ovoid, nearly 1.5 cm. long, slender beaked. 
In sandy soil, Tampa Bay, Florida. Summer. 
