a ae eee ae ee 
THE YUCCEAE. 129 
Plate 79. — Samuela Carnerosana, from the Carneros Pass, Mex., 
natural size.—1, Inflorescence bud; 2, Flower, with nearer part of 
perianth removed, and half grown fruit with the persistent split perianth 
tube upwards of 2 cm. long. 
Plate 80.—1, Samuela Carnerosana, in the Carneros Pass, Mex.; 2, 
Yucca flaccida, var., cultivated at the Missouri Botanical Garden. Both 
reduced. — The perianth differences of the two genera are well shown. 
Plate 81.— Samuela Carnerosana, in the Carneros Pass, Mex.—1, A 
trunk decorticated by slashing it on the two sides and tearing the leaves 
down, exposing the pulpy interior for stock to feed upon; 2, A fruit, 
somewhat reduced, showing the split dried perianth tube. 
Plate 82. — Yucca elephantipes, at Chinautla, Guatemala, and Samuela 
Faxoniana, at Sierra Blanca, Texas. Flowers, reduced about one-third. 
Plate 83. — Seeds of Yuccas, natural size.*—1, Y. jilamentosa con- 
cava, Isle of Palms, 8. C. (Trelease); 2, Y. flaccida glaucescens, culti- 
vated at the Missouri Botanical Garden; 3, Y. tenuistyla, Industry, Tex. 
(Lindheimer); 4, Y. constricta, Uvalde, Tex. (Trelease); 5. Y. radiosa, 
Presidio, Tex. (Trelease); 6, Y. angustissima near Grand Cafion, Ariz. 
(Trelease); 7, Y¥. Arkansana, New Braunfels, Tex. (Lindheimer); 8, 
Y. Louisianensis, Atoka, Ind. Ter. (Butler); 9, Y. glauca, N. W. Mis- 
souri (Bush); 10, ¥. Harrimaniae, Helper, Utah (Trelease). 
Plate 84. — Seeds of Yuccas, natural size.—1, Y. rigida, Picardias, 
Mex. (Trelease); 2, Y. rupicola, New Braunfels, Tex. (Lindheimer); 3 
Y. rostrata, Peyotes, Mex. (Trelease); 4, Y. gloriosa superba, cultivated 
in Washington, D. C. (Schott); 5, Y. recurvifolia, cultivated at Bluffton, 
S. C. (Mellichamp); 6, Y. aloifolia, Bluffton, 8. C. (Mellichamp); 7, 
Y. elephantipes, cultivated at the Missouri Botanical Garden; 8, Y. Tre- 
culeana, New Braunfels, Tex. (Lindheimer). 
Plate 85.— Seeds of Yucceae, natural size. — 1, Yucca Schottii, Pinal 
Mts., Ariz. (Pringle); 2, Y. australis, Parras, Mex. (Trelease); 3, 
Y. valida, Gutierrez, Mex. (Trelease); 4, Y. baccata, Grand Cafion, Ariz. 
(Trelease); 5, Y. macrocarpa, near Presidio, Tex. (Trelease); 6, Y. 
Mohavensis, Drake, Ariz. (Trelease); 7, Hesperaloe parviflora, Texas 
(Wright); 8, H. funifera, Hacienda de Angostura, Mex. (Pringle, no. 
3911); 9, Hesperoyucca Whipplei, Arrowhead Springs, Calif. (Trelease) ; 
10, Clistoyucca arborescens (Palmer); 11, Samuela Faxoniana, Sierra 
Blanca, Tex. (Trelease); 12, 8. Carnerosana, Carneros Pass, Mex. 
(Trelease). 
Plate 86. — Germination of Yuccas, natural size. —1, Y. radiosa; 2, Y. 
macrocarpa. 
Plate 87. — Germination of Yucceae, natural size. —1, eee ar- 
borescens; 2, Samuela Carnerosana. 
Plates 88-99. — Geographical distribution of Yucceae. — Stations noted 
by the author are indicated by a <, and the general range known to him 
is shown by horizontal shading. Many gaps require filling. 
* The figures in this and the following plates are numbered from left 
to right in the several rows, beginning with the uppermost. 
9 
