Dioscorea.] OLIV. DIOSCOREACER. (J. D. Hooker.) 291 
ferous (except D. decipiens); anther-cells combined. Capsule (where 
known) broader than long. Seeds orbicular, broadly winged all round. 
* Male flowers in long simple or nearly simple axillary spikes, distant, 
or in distant clusters. 
7. D. spinosa, Roxb.ex Wall. Cat. 5703 A, B, C, E, F; glabrous or 
tomentose, leaves orbieular- or reniform-cordate, perianth subrotate, pistil- 
lode large. D. aculeata, Rowb. Fl. Ind.iii.800 (not of Linm.). _D. sativa, 
Lina. Sp. Pl. 1033 partly; Kunth Enum. v. 341 (excl. 8). Thwaites Enum. 
#26 in note. D. tiliwfolia, Kunth l c. 401. D. cymosula, Hemel. Biol. 
entr. Amer. Bot. iii. 355, v. t. 90. D. aculeata, Cerubulium and echinata, 
Herb. Ham. D. lanata, Balf. Bot. Socot. v. 989.—Rheede Hort. Mal. 
viii. t, 52.—Rumph. Amb. v. t. 126. 
TROPICAL Inra, CkvLoN, Burma and the MALAY PENINSULA, cultivated.— 
ISTRIB. Trop. America, . . 
ien 1. very large; base of stem with long woody rigid fibres bearing spines half 
an inch long. ` Stem terete, very spinous at the base. Leaves attaining 8 in. long and 
Toad, acuminate or cuspidate, 5-7-nerved, rather membranous, basal lobes rounded. 
Male spikes 6-18 in, ; flowers } in. diam., often in very dense cymules, sessile or shortly 
edicelled ; bracteoles very broad; perianth segments remote from the large oblong 
Pistillode ; anthers large. Fem. raceme rather short. Capsule 1 in. diam., broadly 
9beordate ....T cannot adopt Roxburgh's name of aculeata for this, for it is nob 
nmæus’s plant of that name, which is Rheede's Katter Kalengra, and which bas 
panicled male spikes. Nor can I, as Kunth and Thwaites have, take Linnæus’ name 
«lia, though Rheede’s figure of it is cited by Linnzus under his sativa, be- 
i te Plant figured in * Hortus Cliffortianus ” must be accepted as sativa Linn., 
eing cited by himself as his type. 
& D. deltoidea, Wall. Cat. 5110; nearly glabrous, leaves hastately 
. Cat. 5110; nearly glabrous, isti 
cr subdeltoi dly-cordat? acuminate 7-9-nerved, perianth sub-rotate, pistil- 
e minute, “Kunth Enum. v. 340. 
Hie MPERATE HIMALAYA; from Kashmir to Bhotan alt. 6-1000 ft. Kasra 
alt. 4-5000 ft.—Disrrrp, Affighanistan. ini | B in. mem- 
ran ranches very slender, terete, unarmed. Leaves attaining 7 by i wee ie 
nous, reticulate beneath, very variable in breadth and depth of o mg: Wo 
ale spiga, Fiangolar, sometimes dilated outward; petiole 2-5 in., very sle d: 
le Spikes very slender, rarely branched ; flowers œx in. diam., solitary or clustere le 
pe -segments nearly flat; stamens very short, anthers didymous. n 
TT variable, orbicular, deltoid or obtusely quadrate, rarely broadly obcor UM a 
| truncate or broadly cuneate; valves very thin. Seeds very varia MA 
d winged all roun d or on one side.— I hesitate to unite with this the nin » 
: referred to it by Hemsley and Collett (Journ. Linn. Soe, xxviii. 137) w 
Mperfect for determination. 
atero Wightii, Hook. f.; quite glabrous, leaves ovate-cordate acumi- 
1 "herved, perianth-segments erect, pistillode minute. 
RAVANCORE De : 
I R ; Vourtallam, Wight. itary, 
sessile habit and foliage very like D. deltoidea, but the flowers are always solitary 
: bya broad base, the filaments much longer, and the anthers large and oblong. 
Y one specimen seen. 
10. D. s ; alternate 
‘Spicata, Roth Pl. Nov. 571; quite glabrous, leaves alt 
tently petioled linear-oblong or lanceolate S rarely 5-nerved finely reticnlate 
Thwaites HI globose, pistillode large conical. Kunth Enum. vi. : 
Gites Enum. 39 e > 
v2 
