EUPHORBIACEAE. 105 



with a turbinate calyx-tube and 6 minute broad lobes surrounding the minute 

 orifice: stamens erect, the narrow anthers opening vertically. Pistillate flowers 

 with a short, broad calyx-tube and 6 very broad imbricate lobes. Berry de- 

 pressed. 



1. B. nivosa (W. J. Smith) Small. An irregularly and loosely branched shrub, 

 the branches dark-red: leaves somewhat distichously spreading; blades oval, 

 varying to ovate or obovate, green and white, variegated with red and pink: 

 staminate calyx about 3 mm. wide, the lobes very shallow: pistillate calyx 

 8-10 mm. wide, the lobes reniform: capsules 9-12 mm. broad. [Phyllanthus 

 nivosus W. J. Smith.] Pinelands and waste places. Nat. of the South Sea 

 Islands, and cultivated. (Cuba, Ant.) SNOW-BUSH. 



4. DRYPETES Vahl. Shrubs and trees. Leaf-blades entire or sinuate. 

 Flowers apetalous. Staminate flowers in rather dense clusters, with 4-8 

 sepals and 4-10 stamens. Pistillate flowers few in a cluster, with 4-8 sepals 

 and a 1-2-celled ovary. Fruit a drupe. 



1. D. lateriflora (Sw.) Krug & Urban. Shrub, or tree becoming 10 m. tall: 

 leaf -blades oblong or elliptic: sepals 4: stamens 4: drupes 9-11 mm. in diam- 

 eter. Hammocks. F. K. (Bah., Cuba, Ant.) 



5. CROTON L. Herbs or shrubs. Leaf -blades entire, toothed, or lobed. 

 Flowers monoecious or rarely dioecious, usually spicate or racemose. Staminate 

 flowers with 4-6, usually 5, sepals, small often rudimentary petals alternating 

 with glands, and 6 stamens. Pistillate flowers with 5-10 sepals, usually no 

 petals, and a 3-celled ovary. Fruit a capsule. 



Petals present In the staminate flowers, wanting or rudimentary in the pistillate. 

 Leaf-blades entire : pistillate calyx not accrescent. 



Leaf-blades narrowly linear, glabrate above, yellow-pubescent beneath. 



1. G. linearis. 



Leaf-blades narrowly oblong, stellate above, white-pubes- 

 cent beneath. 



Leaf-blades toothed : pistillate calyx accrescent. 2. C. Fergusonii. 



Seeds oblong, minutely punctate, dull : leaf-blades crenate. 3. C. arenicola. 

 Seeds oval or ovoid, smooth and shining : leaf-blades ser- 

 rate or crenate-serrate. 4. C.glandulosus. 

 Petals wanting in both the staminate and the pistillate flowers. 5. C. punctatus. 



1. C. linearis Jacq. Shrub 6-20 dm. tall: leaf -blades narrowly linear, 4-8 cm. 

 long: staminate racemes 4-8 em. long or longer; sepals triangular; petals 

 spatulate, surpassing the sepals, obtuse: stamens about 15: pistillate racemes 

 4-5 cm. long: capsules subglobose, 5 mm. high, yellowish floccose: seeds broadly 

 oblong, about 3 mm. long. Pinelands and coastal sand-dunes. F. K. (Bah., 

 Cuba, Ant.) 



2. C. Fergusonii Small. Shrub 4-12 dm. tall: leaf -blades narrowly oblong to 

 broadly linear, 3-6 cm. long: staminate racemes 3-5 cm. long; sepals deltoid, 

 acute; petals spatulate, 2.5-3 mm. long, surpassing the sepals, ciliate; stamens 

 about 15: pistillate racemes 2-3 cm. long: capsules subglobose, about 5 mm. 

 long : seeds 3.5-4 mm. long. Pinelands. 



3. C. arenicola Small. Plant 1.5-4.5 dm. tall: leaf -blades ovate to oblong- 

 ovate, 1-3 cm. long, blunt, coarsely toothed: staminate sepals oblong or oval, 

 acute; petals oblong to oblanceolate : stamens 9-12: pistillate flowers solitary 

 or 2-3 below the staminate; sepals spatulate, accrescent: capsules globose- 

 oval, 4.5-5 mm. long: seeds 3-3.5 mm. long. Pinelands and sand-dunes. F. K. 

 F. K. 



4. C. glandulosus L. Plant 1 m. tall or less: leaf -blades oblong, varying to 

 oblong-ovate or oblong-lanceolate, mostly 2-6 cm. long, serrate or crenate- 

 serrate: staminate sepals ovate to deltoid, acute; petals oblong: stamens 6-11 1 



