SYNOPSIS. 
Plants rarely suckering except in the first group. Leaves fleshy, usually curved. Endemic. 
Leaves usually green. 
Flowers rather large (40-80 mm. from base of ovary to tip of perianth). Panicle decompound. Seeds rather 
large (4-6 by 6-9 mm.). 
Freely bulbiferous, not always fruiting. Prickles usually small. 
Spine elongated, slender. Plants suckering. Venezuelan................------ VIVIPARAE (p. 17). 
Spine with stout involutely slit base, above this usually short and oblique. Plants not suckering. 
Caribbean osteo. ca aem cee eee ae erie Bee Fagard pees ANS alia eae (Ee See CARIBAEAE (p. 21). 
Freely fruiting, sometimes bulbiferous. Prickles usually rather large. Spine usually elongated. Antil- 
Leann es S es aie a 2 eS Ee A ay Se ANTILLANAE (p. 29). 
Flowers rather small (30-45 mm.). Panicle branches rather simple. Seeds small (4-5by5-G6mm.). Prickles 
small Spinesusuallyjelongatedsy -Antilleanssee cere eae eee ee eee eee eee eee eee eee ANTILLARES (p. 42). 
Leaves usually gray. Flowers rather large (40-60 mm.). Panicle decompound. Seeds rather large (4-6 by 7-8 
mim). si Spine elongateds) Bahamian yan e epee lamer nay ee geen eer ee BAHAMANAE (p. 38). 
Plants freely suckering. Leaves hard and straight, gray. Endemic. 
Flowers rather small (35-50 mm.). Seeds small (4by 5 mm.). Bahamian............. INAGUENSES (p. 46). 
Plants freely suckering. Leaves hard and straight, at first gray or glaucous. Introduced. 
Flowers rather large (40-65 mm.). Seeds large (7 by 8-10 mm.).........-..-.-.-------- SISALANAE (p. 47). 
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