113 
1. X. oxyantha. 
2. 
3. 
X. dicarpa. 
X. malayana. 
oymose or fascicled ; buds triquetrous, conic, often slender. Sepals 3, 
valvate, connate. Petals 6, elongate, valvate, in 2 series ; outer flat or 
concave ; inner nearly as long, trigonous, concave at the base only. Torus 
flat, or hollow and enclosing the carpels. Stamens oblong, truncate or 
connective produced ; anther-cells remote or contiguous, often septate 
and with a large pollen-grain in each cellule. Ovaries 1 or more ; style 
long, clavate; ovules 2-6 or more, 1- to 2-seriate. Ripe carpels long or 
short, continuous or moniliforxn, usually several- seeded. — Distrib. Tro- 
pics generally ; species 60 to 70. — Closely allied to Melodorum, but very 
different in habit. 
Leaves quite glabrous. 
Leaves 6 or 7 in. long 
Leaves between 3 and 5 in. lon^. 
Ripe carpels eylindric, boldly tuberclcd 
„ „ smooth 
Leaves between 2 and 3 in. long. 
Flowers always solitary ; pedicels with 
2 or 3 orbicular bract eoles, apical pro- 
cess of stamens rounded, anther-colls 
septate 
Flowers solitary or in pairs, '5 in. long: 
pedicels with orbicular basal bracte- 
oles ; apical process of stamens round- 
ed ; anther-cells septate... 
Flowers in fascicles or solitary, ~75 in. 
long : pedicels ebracteolate ; apical 
process of stamens oblong : anther- 
cells not septate 
Both surfaces of leaves glabrous, the midrib alone 
pubescent in its lower half on the upper sur- 
face ; length 5'5 to 9"5 in. 
Leaves glabrous on the upper surface (tlie midrib 
pubescent in X. caudata), the lower slightly 
pubescent or pubcrnlous. 
Leaves more or less lanceolate, acute or acu- 
minate, not at all obovato. 
Leaves 2 or 3 in. long. 
Leaves not glaucous beneath. 
Flowers '5 to '57 in. long, soli- 
tary, axillary, obtnse 
Flowers *2 to 25 in. long, axil- 
lary, solitary, or 2 to 3 to- 
gether 
362 
4. X. Maingayi. 
5. X. pushdata. 
6. X. fusca. 
7. X. Curtisiu 
8. X. elliptica. 
9. X cauduta. 
