THE YUCCEAE. 33 
faint grooves which persist to the very inconspicuously 
3-lobed perforate somewhat fimbriate stigma. The ovary 
possesses three large plane septal nectar glands, passing 
outward at top into conducting grooves which open at the 
base of the pistil, and the abundant secretion of which, 
when not removed, drips to the mouth of the pendent 
flower so that toward the end of the day, when the flower 
closes, the anthers, style and perianth are gummed together 
into a nearly inseparable mass. The ovules resemble in 
shape and arrangement those of the capsular species of 
Yucca, and the erect capsule and thin flat black seeds are 
equally suggestive of this section of Yucca. 
H. parviflora Engelmanni (Krauskopf) Trelease. 
H. Engelmanni Krauskopf, Notice to Botanists, etc., Aug. 1878 [cir- 
cular].— Watson, Proc. Amer. Acad. 14250. (1879). — Baker, 
Journ. Linn. Soc. Bot. 183231. — Coulter, Contr. U. 8. Natl. Herb. 
2: 436. 
H. yuccaefolia Garden. 18 : 188. 20:71, 361. 21324. — Gard. Chron. 
n. 8. 18:87, 109, 199. f. 34. — André, Rev. Hort. 58: 64. — Hooker, 
Bot. Mag. iii. 56. pl. 7223. 
Flowers oblong-campanulate, about 25 mm. long; styles scarcely ex- 
ceeding the perianth. — Plates 1, f. 2. 2. 
Southwestern Texas, about the head of the west fork of 
the Nueces river. 
In 1878, Mr. E. Krauskopf, of Fredericksburg, Texas, 
issued an advertising circular mentioning H. yuccaefolia 
and offering for sale plants of a Hesperaloe which he 
had brought from the western dry branch of the Nueces 
river and for which he proposed the name H. Hngelmanni. 
The flowers are described as bell-shaped, red, with short 
thick style and anthers as much as a quarter of an inch 
long, whereas in H. yuccaefolia the latter are said to be 
several times shorter than the filiform style. Specimens of 
this supposed second species were sent to Dr. Engelmann, 
‘through Lindheimer, and are noted in his herbarium as 
having been collected by Meusebach, though they are evi- 
dently of the collection referred to by Krauskopf. 
3 
