164 MISSOURI BOTANICAL GARDEN. 
scription of foliage characters would appear to belong to 
the group Chsnoyucca, but its flower and fruit are 
unknown. ) 
* * HESPEROYUCCA.— Style slender, with an expanded peltate or 
thimble shaped stigma: filaments glabrous. 
Y. Whipplei, Torr. Bot. Mex. Bound. ( 1859), 222; 
Engelm. J. c. 277, 296, 297, 298; Watson, 2. ¢. 254; Baker, 
1. c. 230; Revue Horticole,1884, 324; Nicholson, 7. c. 234. 
— Plates 11, 12 & 54. — Baker, in Kew Bulletin, January 
1892, 8, proposes to separate this from Yucca, under the 
generic name Hesperoyucca. 
EXPLANATION OF PLATES ILLUSTRATIVE OF Yucca. 
Plate 1. Y. Treculeana.— Plant blooming at the Villa 
Thuret, Antibes, France, in 1876. 
Plate 2. Y. baccata.—From a photograph taken near 
San Diego, Cal., Mar. 16, 1876, by Parker, x ,),. 
Plate 3. Y. filifera.— Young plants cultivated at the 
Villa Thuret, Antibes, France, in 1876. 
Plate 4. Y. filifera.— Plants blooming at the Villa 
Thuret in 1891, from a photograph furnished by Professor 
Naudin. 
Plate 5. Y. brevifolia. — Plant in the desert east of the 
Sierra Nevada, x ;5; from photograph presented by Dr. 
Parry in 1867. 
Plate 6. Y. gloriosa. — Specimen blooming at the Villa 
Thuret, Antibes, France, in 1876. (The original of a cut 
published in the Garderers’ Chronicle, June 30, 1883. ) 
Plate 7. a. Y. aloifolia; b. Y. gloriosa. — From a pho- 
tograph of fruiting plants taken in 1872, on the grounds of 
the Department of Agriculture, x 4. 
Plate 8. Y. angustifolia. — Fruiting plants on the mount- 
ains near Manitou, Col., July, 1891. 
Plate 9. Y. elata. — Flowering specimen on the plains 
of Arizona, photographed by Pringle. Copied, by permis- 
sion, from Garden & Forest, ii. 569. 
