‘360 DIOSCOREACEZ. 
19. Dioscorea remotiflora, Kunth, Enum. v. p. 409. 
Dioscorea laxiflora, Schl. in Linnea, xvii. p. 606. 
Helmia ehrenbergia, Kunth, Enum. v. p. 433, ex Griseb. Fl. Brit. W. Ind. p. 588. 
Sout Mexico, Atotonilco el Grande (Schiede). 
20. Dioscorea sapindoides, Presl. (Descript. amplif) (Tab. XCL.) 
Foliis glabris cordato-oblongis, floribus omnibus villosulis masculinis fasciculatim racemosis, pedi- 
cellis quam flores longioribus, staminibus 6 centralibus, filamentis ad medium connatis, 
femineis laxiuscule spicatis, stylis connatis. 
Herba vel frutex volubilis, caulibus glabris gracilibus teretibus. Folia glabra, alterna, petiolata, 
membranacea, glabra, ad apicem 3-nervia, nervis extimis brevibus 2-furcatis, cordato-oblonga, 
2-4-pollicaria, anguste acuminata vel fere cuspidata; petiolus gracillimus, ad pollicaris. 
Flores masculini villosuli, 1-14 lineas diametro, fasciculatim racemosi; racemi simplices, 
solitarii vel plures, 3-9-pollicares; bracteee parve; pedicelli graciles, floribus subduplo 
longiores ; perianthii 6-partiti segmenta oblonga; stamina 6 centralia, filamentis ad medium 
connatis supra medium recurvis. Flores feminet villosuli, laxiuscule spicati; spice 3-4- 
pollicares (subpedales, ex Preslio) ; perianthii lobi oblongi; styli connati. (“ Capsula 6 lineas 
longa, 4 lineas lata, sessilis, subelliptica, glabra vel presertim apice pilis raris flexuosis 
aspersa.”’—Presl, Relig. Henk. 1. p. 138. 
Mexico (ex Presi); Panama, near the city of Panama (Seemann, 287), Empire. 
railway-station (S. Hayes, 303, 321). Hb. Kew. 
EXPLANATION OF TAB, XCI. 
Flower-bearing branches of the male and female of Dioscorea sapindoides, natural size. Fig. 1, a 
cluster of male flowers ; 2, a male flower, fully expanded ; 3, central andreecium of the same ; 
4, young female flowers; 5, one of the same, further enlarged; 6, a fully expanded female 
flower ; 7, styles and rudimentary stamens of the same: all enlarged. 
21. Dioscorea sparsiflora, Hemsley, n. sp. 
Glabra vel cito glabrescens, foliis 9-nerviis vere cordiformibus apiculatis, floribus masculinis in glome- 
rulos 5—1-floros subspicatis, glomerulis distantibus perianthio fere campanulato, lobis reflexis, 
staminibus 6, filamentis perianthio ad medium adnatis, floribus femineis fructibusque ignotis. 
Herba vel frutex volubilis, primum minutissime sparsissime puberulus, cito glaberrimus, caulibus 
graciliusculis subteretibus vel leviter angulatis. Folia alterna, longiuscule petiolata, membra- 
nacea, 9-nervia, nervis extimis furcatis, vere cordiformia, 3-5-pollicaria, apiculata vel abrupte 
et brevissime acuminata, nervis venisque primariis subtus prominulis; petiolus gracilis cana- 
liculatus. Flores masculini glabri, 3-4 linee diametro, vix lineam longi, subsessiles vel 
‘brevissime pedicellati, in racemos vel pseudospicas elongatas laxissimas 2-5 agegregati, vel 
interdum solitarii ; pseudospice graciles, longiuscule pedunculatz, solitarie vel 2-3 aggregate, 
3-9 poll. longze ; perianthium urceolato-campanulatum ad medium 6-lobatum, lobis recurvis ; 
stamina fertilia 6, equalia, perianthii tubum paullo excedentia, filamentis perianthio ad medium 
adnatis; ovarii rudimentum maximum. 
Sout Mexico, Plateau of Mexico (Ghiesbreght). Hb. Kew. 
In many respects this answers to Schlechtendal’s description of D. laxiflora (D. 
remotifiora, Kunth); but there is scarcely a trace of the minutest hairs upon it in 
quite a young state, and the leaves and perianth and stamens seem to differ, and the 
