222 EUPHOEBIACEAE. 



2. Drypetes diversifolia Krug & Urban, Bot. Jahrb. 15: 353. 1892. 



Drypetes keyensis Krug & Urban. Joe. cit. 354. 1892. 



Tree up to 6 m. high; branches terete, grayish, secreting drops of resin 

 in the axils. Leaves of two forms: the lower long-petioled, margin spinose- 

 dentate and spinous-acuminate, base rounded; the upper longer-petioled, 

 margin entire, obtuse or subacuminate, the base rounded or obtuse and slightly 

 protracted down the petiole; all ovate, 7-9 cm. long, 3.2-3.8 em. broad. 

 Inflorescence few-flowered, the pistillate flowers sometimes solitary; calyx 

 yellowish; sepals oblong or oval, sometimes slightly rhomboid, obtuse, pubes- 

 cent without ; stamens 8 ; stigmas slightly oblique ; drupe broadly oblong or 

 ovoid, 1.9-2.5 cm. long, tomentulose. 



Coppices, Great Bahama, through the larger Berry Islands to Andros and Cay 

 Sal Bank : New Providence ; Little San Salvador to Watling's Island ; Great Exurna 

 through the Crooked Island Group to Inagua : Florida Keys. Whitewood. 



3. Drypetes mucronata C. Wright ; Griseb. Xachr. Ges. Wiss. Goett. 1865 : 165. 



1865. 



Shrub 4-5 m. high; branches terete, lenticillate. Leaves petioled, bicol- 

 orate, 3.8-7 cm. long, 2.5-3.2 cm. wide, both surfaces strongly reticulate- 

 veined, the base obtuse or slightly decurrent on the petiole, rarely slightly 

 inequilateral, the apex mucro-spinescent; female flowers subsolitary; male 

 glomerate or fasciculate; calyx of both sexes about 2 mm. long, pubescent 

 within; stamens longer than the calyx; filaments and anthers pubescent; ovary 

 reddish-hairy ; fruit globose, about 2 cm. long, obscurely golden-tomentose. 



Rocky coppices of Great Bahama and Andros : Cuba. Sharp-leaved Drypetes. 



8. CROTON L. Sp. PI. 1004. 1753. 



Herbs, shrubs or trees, strong-scented, often stellate-pubescent. Leaves 

 mostly alternate, sometimes with two glands at the base of the blade. Flowers 

 spicate or racemose. Staminate flowers uppermost: calyx 4-6-parted (usually 

 5-parted) ; petals usually present but small or rudimentary, alternating with 

 glands; stamens 5 or more. Pistillate flowers: calyx 5-10-parted; petals 

 usually wanting; ovary mostly 3-eelled; ovule 1 in each cavity; styles once, 

 twice or many times cleft. Fruit capsular. Seeds carunculate. [Greek name 

 of the Castor-oil plant.] Over 600 species, widely distributed. Type species: 

 Croton Tiglium L. 



A. Leaves entire or dentate ; shrubs. 

 Leaves discolor. 



Leaves narrowly linear, not over 2 cm. long. 1. C. rosmarinoides. 



Leaves linear to oblong, 3.5-12 cm. long. 2. C. linearis. 

 Leaves ovate-lanceolate. 



Leaves stellate beneath. 3. C. flocculosus. 



Leaves silvery lepidote. 4. C. Eluteria. 

 Leaves unicoior. 



Leaves elliptic-lanceolate, glabrous. 5. C. lucidus. 



Leaves narrowly lanceolate, stipitate-glandular. R. C. bahamensis. 



B. Leaves deeply lobed ; herbaceous. 7. C. lobatus. 



1. Croton rosmarinoides Millsp. 



Croton rosmarinifolius Griseb. Naehr. Ges. "Wiss. Goett. 1865: 174. 1865. 

 Not Salisb. 1796. 



A densely branching shrub 1.25-2 m. high. Leaves subsessile, sublinear, 

 rigid, 8-12 mm. long, obtuse, the margin entire and strongly incurved, densely 

 lepidote beneath; stipules obsolete; inflorescence terminal on very short branch- 



