SRS RES SP er 
THE YUCCEAE. 133 
Yucca orchioides (51) 
— major (51) 
Ortgiesiana (39, 41) 
Parmentieri (105) 
parviflora (30) 
patens (81) 
pavifiora (30) 
Peacockii (79) 
pendula (76, 82) 
— aurea (78) 
— variegata (78) 
periculosa (103, 104, 106) 
Peruana (72) 
picta (91) 
pitcairnifolia (115) 
plicata (75, 82-3) 
— glauca (75) 
plicatilis (75) ‘ 
polyphylla (57, 103, 104, 106) 
X praecox 116 
Pringlei (43, 105) 
pruinosa (81) 
puberula (49, 100) 
quadricolor (91, 93) 
— variegata (91) 
radiosa 45, 56 (58) 104, 117, 121, 126, 
129. pl. 21, f. 2, 22, 83, f. 6, 86, f. 
1,93 
recurva (76) 
— elegantissima (78) 
recurvata (97) 
recurvifolia 45, 48, 64, 75, 76, 77, 81, 82, 
83,°84, 86, 87, 122, 123, 127, 129. pl. £6, 
SJ. 2,47, f. 1, 84, f. 5, 94 
— elegans 77, 78 
—— marginata 77, 78 
— rufocincta 77, 78 
— tristis 77 
— variegata 77, 78 
revoluta (97) 
rigida 45, 65 (67) 106, 126, 129. pl. 365, 
86, f. 1, 84, f.1, 93 
Roezlii (94) 
rostrata 45, 68, 104, 126, 127, 129. pi. 
86, f. 2, £40, 41, 42, 84, f. 3, 93 
rubescens (115) 
rubra (74) 
rufocincta (78) 
rupicola 45, 67, 83, 116, 127, 129. pl. 37, 
88, 89, 84, f. 2,93 
— rigida (65, 67) 
Yucca rupicola tortifolia (66-7) 
scabrifolia (103, 104, 106) 
schidigera (113) 
Schottii 46, 98 (99, 100) 101, 103, 127, 
128, 129. pl. 66, 57, 85, f. 1, 96 
—— Jaliscensis 99, 120, 127. pl. 56, 96 
semicylindrica (80) 
serratifolia (115) 
serrulata (88) 
— argenteo-marginata (90) 
spinosa (114-5) 
stenophylla (79, 114-5) 
Stokesi (91) 
X striatula 79 
stricta (61, 64) 
— elatior (64) 
—— intermedia (64) 
X sulcata 74 
superba 76 
tenuifolia (93) 
tenuistyla 45, 53, 62, 126, 129. pl. 77 
f. 2, 18, 19, 83, f. 8, 92 : 
Toneliana (105) 
tortilis (67) 
tortulata (80) 
Treculeana 45, 82, 88, 96, 97 (99, 103) 
106, 112, 115, 120, 122, 127, 129. pi. 52, 
84, f. 8, 95, 
—  canaliculata 97, 127. pl. 53, 54, 
95 : 
— glauca (97) 
— undulata (97) 
X Treleasei 116 
tricolor (91) 
undulata (80, 97) 
valida 46, 107, 128, 129. pl. 62-67, 86, 
I. 3 BF 
Vandervinniana (96) 
variafolia (77) 
variegata (90) 
versicolor (20) 
Virginiana (47) 
x viridiflora 116 
xX Vomerensis 116 
Whipplei (39) 
— glauca (39) 
— graminifolia (39) 
— violacea (40) 
Yucatana 93 
Yucceae 27, 28 
Yuccoideae 27 
