198 ERYTHEOXYLACEAE. 



Family 2. ERYTHROXYLAOEAE A. Rich. 



Coca Famxly. 



Glabrous trees or shrubs, with mostly alternate simple stipulate en- 

 tire-margined, petioled leaves and small, often heterostylous, pedicelled 

 flowers solitary or fascicled in the axils, the pedicels bracted at the base. 

 Calyx persistent, mostly 5-cleft. Petals as many as the calyx-lobes, ap- 

 pendaged by a 2-lobed ligule within. Stamens 10, in 2 series, their fila- 

 ments united below into a tube. Ovary 3-celled, rarely 4-celled; ovules 1, 

 rarely 2, in each cavity, pendulous; styles 3, rarely 4; stigmas capitellate. 

 Fruit a drupe, usually 1-celled and 1-seeded. Seed-coat thin; endosperm 

 farinaceous; embryo straight. Only the following genus and the African 

 Aneulophus. 



1. EEYTHROXYLON L. Syst. ed. 10, 1035. 1759. 



Leaves alternate. Petals short-clawed. [Greek red-wood.] About 200 

 species of tropical and subtropical distribution. Type species: Erythroxylon 

 areolatum L. 



Leaves 0.5-2.5 cm. long, pale beneath. 1. B. rotundifoMum. 



Leaves 3 cm. long, or longer. 



Leaves conspicuously areolate beneath. 



Flowering pedicels as long as the petioles, or shorter ; 



leaves 5-13 cm. long. 2. E. areolatum. 



Flowering pedicels, or some of them, much longer than 



the petioles ; leaves 3^ cm. long. 3. E. reticiilatum. 



Leaves not areolate beneath, or only very faintly areolate, 



obovate, 3-7 cm. long. 4. E. confusum. 



1. Erythroxylon rotimdifolium Lunan, Hort. Jam. 2: 116. 1814. 



HrytJiroxylon obovatum Maef. El. Jam. 1: 143. 1837. 



Erythroxylon suave 0. E. Schulz, in Urban, Symb. Ant. 5: 197. 1907. 



Erythroxylon suave aneurum O. E. Selitilz, loe. eit. 199. 1907. 



A shrub or a small tree up to 7 m. high, with slender flexible branches, the 

 bark smooth. Leaves obovate to oblong-obovate or elliptic, firm in texture, 

 0.5-3 cm. long, obtuse or emarginate, dark green above, pale beneath, incon- 

 spicuously reticulate-veined, the petioles 2.5-5 mm. long; stipules ovate or 

 ovate-lanceolate, acute or acuminate, 1-1.5 mm. long; flowers 1-4 in the axils; 

 pedicels mostly as long as the petioles or longer; calyx cleft to about the 

 middle, about 1 mm. long, its lobes triangular-ovate, acute; petals white, ob- 

 long, 1.5-2.5 mm. long, obtuse, the ligule about one-third as long as the blade, 

 its lobes irregularly toothed ; drupes oblong, red, obtuse, 4-6 mm. long. 



Rocky plains, pine-lands and coppices, throughout the archipelago from Abaco 

 and Great Bahama to Andros, North Caicos, Grand Turk and Inagua : — Cuba to 

 Porto Rico ; .Tamalca. Consists of several races differing in size, shape and thick- 

 ness of the leaves. Referred by Hitchcock, Coker, Dolley, and by Mrs. Northrop 

 to E. irevipes DC. ; formerly referred by O. B. Schulz to E. spinescens A. Rich. 

 Round-leaved EnyTHEOXYixiN. Rat-wood. 



2. Erythroxylon areolatum L. Syst. ed. 10, 1035. 1759. 



A shrub or a small tree up to 6 m. high. Leaves oblong to obovate, rather 

 thin, .5-13 cm. long, 3-5.5 cm. wide, obtuse or emarginate at the apex, narrowed 

 at the base, dark dull-green above, pale beneath and areolate by two lines 

 parallel with the prominent midvein, the petioles 4-6 mm. long; stipules tri- 

 angular, acute, about 2 mm. long; pedicels fascicled, as long as the petioles or 

 shorter; flowers appearing with the leaves of the season, or before them, fra- 



