870 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
1. Acleisanthes wrightii (A. Gray) Benth. & Hook.; Hemsl. Biol. Centr. Am. 
3: 6. 1882. 
Pentacrophys wrightit A. Gray, Am. Journ. Sci. II, 15: 261. 1853. 
Doctor Gray says that the flowers have 2 stamens, but those I examined 
had 5. 
Specimens examined: 
Texas: San Pedro, Pecos, and Limpio, Wright 1713, type collection, 
2. Acleisanthes acutifolia Standley, sp. nov. 
Perennial from a woody base; stems rather slender with minute and seattering 
pubescence composed of short, appressed, blunt, white hairs and, scattered 
among them, 2 few short, gland-tipped hairs; leaf blades lanceolate or ellip- 
tical, 4.5 em. or Jess in length and J8 mm. or less wide, acute, narrowed to 
the base and somewhat decurrent upon the petioles, which are one-third or 
less as long as the blades, the margins wavy, both surfaces .very sparingly 
puberulent; flowers short-pediceled, the pedicels about 3 mm. long; involucral 
bracts 8, linear, as long as the fruit or longer; flowers funnelform, 4 cm. long 
or more, rather densely puberulent without, the limb about 18 mm. wide; sta- 
mens 5, exserted; some of the flowers cleistogamous, their undeveloped peri- 
anths with 5 small stamens; fruit 7 to 8 mm. long, oblong, with 5 thick, smooth 
ribs separated by very shallow and inconspicuous depressions; ribs ending in 
small, knoblike bodies detached from the ribs proper by shallow depressions, the 
latter containing small glands. 
The acute leaves with narrowed bases and short petioles will separate this 
plant from A. wrightii, with which it has been confused; it is also distinguished 
by its different fruits, pedicels, and bracts. In A. wrightii the glands are 
located at the very ends of the ribs instead of in depressions below their sum- 
mits, as in this species. Type in the National Herbarium (no, 155669), col- 
lected at Maxon’s Spring, Texas, by Havard. Also collected in the Santa 
Eulalia Mountains, Chihuahua, 1885, Pringle 671 (plant with rather shorter 
perianths and shorter pedicels than the type). 
This is no. 1127 of the Mexican Boundary Survey and is figured in the 
Report of the Mexican Boundary Survey, plate 47, figures B, B:, and Bs. 
ligure B, is A. wrightii. 
3. Acleisanthes anisophylla A. Gray, Am. Journ. Sei. IT. 15: 261. 1853. 
Specimens eramined: 
Texas: Rio San Pedro, Wright 1706, type collection ; Wright 598. 
4, Acleisanthes longiflora A. Gray, Am. Journ. Sci. IT. 15: 261. 1853. 
Specimens examined: 
Texas: Wright 599, type collection; Wright 1704; on the,Llano under mes- 
quite bushes on prairies, 1847, Lindheimer 679; 20 miles west of New 
Braunfels, 1846, Lindheimer 289; Coleman County, 1882, Reverchon 
1346; Kimble County, 1885, Reverchon; prairies near Stanton, 1900, 
Haogert; near Laredo, 1899, Mackenzie 26; Laredo, 1879, Palmer 1115; 
near Laredo, 1901, Fggert; Sierra Blanca, 1895, AMulford 290; San 
Angelo, 1908, Reverchon; San Antonio, H. HW. Wilkinson 126; San An- 
tonio, 1901, Bush S65; Devils River, Valverde County, 1900, Eggert; 
Midland, 1902, Tracy 83812; plains west of Pecos, 1902, Tracy; Fort 
Clark, 1893, Mearns 1429, 1441; Mexican Boundary Survey 1123; 
Cibolo Canyon, 1881, Havard; Bexar County, Jermy 124; San Diego, 
1885, VM. B. Croft 68388; Knickerbocker Ranch, Tom Green County, 1880, 
Tweedy 35; Roma, 1889, Nealley 302; Ballinger, 1889, Nealley 370, 
