VITACEAE. 223 
Cissus. Marine Ivy. 
- (Family Vitaceae). 
Soft-wooded or rather succulent 
climbers with simple coiling tend- 
rils opposite the leaf-scars: decidu- 
ous. Stems subterete, moderate 
or rather slender: pith rounded, 
moderate, white, continuous and 
without nodal diaphragms. Buds 
small, collaterally branching, 
globose, sessile, with .2. scales. 
Leaf-scars. alternate, 2-ranked, 
rounded: bundle-traces indistinct, 
in an ellipse: stipule-scars small. 
Sometimes included in Ampelop- 
sis aS now defined. 
A still tenderer specias than 
C. incisa is C. acida, which is 
cultivated in the open sometimes. 
The beautiful C. discolor, some- 
times called trailing begonia, is 
familiar in  hot-houses’- every- 
where. 
Glabrous or puberulent: internodes short (2-3cm.). C. incisa. 
Winter-character references to Vitis:—V. cinerea. Hitch- 
cock (3), 10. V. cordifolia. Engelmann, Bushberg Catalogue, 
10, f. 86; Hitchcock (3), 6. V. flexuosa. Shirasawa, 260, pl. 
7. V. labrusca. Engelmann, Bushberg Catalogue, 9. V. ro- 
tundifolia (V. vulpina). Engelmann, Bushberg Catalogue, 10, 
f. 37. V. rupestris. Engelmann, Bushberg Catalogue, 10, f. 
35. V. Thunbergii. Shirasawa, 261. V. vinifera. Schneider, 
f. 122; Shirasawa, 260, pl. 7. V. vulpina (V. riparia). Bren- 
del, 27, pl. 4; Engelmann, Bushberg Catalogue, 10, ‘f. 34; 
Hitchcock (3), 10, (4), 135, f. 19-20. 
