Part 3, 1911] RUTACEAE 217 



terete or occasionally somewhat flattened ; ovary ovoid or subglobose, glabrous ; stigma 

 short, truncate; style wanting; drupe globose, 5 mm. in diameter. 



Type locality : Near Monte Verde, Cuba. 

 Distribution : Eastern Cuba. 



2. Amyris stromatophylla P. Wilson, sp. no v. 



A glabrous shrub 1-2.5 m. tall, with relatively stout branches; twigs and petioles ver- 

 rucose-glandular ; leaves alternate, unfoliolate ; petioles stout, 2-4 mm. long, not con- 

 spicuously jointed at the base of the blade, apparently not separately deciduous ; leaflets 

 oblong to oblong-obovate, 3-8 cm. long; 0.8-2.7 cm. broad, emarginate or obtuse at the 

 apex, rounded or somewhat cuneate at the base, entire, tough, rigid, obscurely pellucid- 

 glandular, separable into two layers, the margin thick, the midvein and primary nerves 

 more prominent beneath than above, the primary nerves parallel and directed toward the 

 apex, joined by cross-veinlets which are usually prominent on the lower surface of the upper 

 leaf-layer ; flowers not seen ; inflorescence apparently terminal ; drupe solitary, subglobose 

 (mature?), 5-7 mm. in diameter. 



Type collected in the Sierra Nipe, along trail, Piedra Gorda to Woodfred, Oriente, Cuba, 

 January, 1910,/. A.Shafer37U (herb. N. Y. Bot. Gard.). 



3. Amyris monophylla Brand. Univ. Calif. Publ. 

 Bot. 3 : 381. 1909. 



A glabrous shrub, with grayish or grayish-brown twigs ; leaves alternate, unifoliolate ; 

 leaflets ovate to broadly elliptic, 2.5-5 cm. long, 1-2.5 cm. broad, rounded or obtuse at the 

 apex, at the base equilateral or nearly so and rounded, entire or obsoletely crenulate ; 

 petiolules 2-5 mm. long ; inflorescence terminal and lateral in the axils of the upper leaves, 

 2-3 cm. long ; calyx-lobes triangular or somewhat triangular-oval ; petals obovate, 3-3.5 

 mm. long, about 1.5 mm. broad, pellucid-glandular; gynophore well-developed; fruit 

 not seen. 



Type locality : Vicinity of San Luis Tultitlanapa, Puebla, near Oaxaca. 



Distribution : Known only from the type locality. 



4. Amyris simplicifolia Karst. Fl. Columb. 2 : 109. 1865. 



Elemifera maritima unifoliaia Kuntze, Rev. Gen. 100. 1891. 



Amyris unifoliaia Griseb.; Urban, Bot. Jahrb. 21 : 609, as synonym. 1896. 



A glabrous shrub 2-3 m. in height, with grayish or grayish-brown twigs, spotted with 

 oval or rounded lenticels ; leaves unifoliolate, alternate, the upper sometimes subopposite ; 

 leaflets narrowly ovate, to ovate, or occasionally oval or orbicular, 2.8-7.5 cm. long, 1.7-5.5 

 cm. broad, obtusely short-acuminate, or acutish or somewhat rounded at the apex, at the 

 base subtruucate or sometimes rounded or cuneate, the margin obsoletely depressed- 

 crenulate ; inflorescence terminal and lateral in the axils of the upper leaves, many-flowered ; 

 calyx-lobes triangular to orbicular-triangular ; petals oblong to narrowly obovate or obovate, 

 2.8-3 mm. long, 1.5-2 mm. broad, white, glandular-dotted; gynophore well-developed; 

 ovary narrowly ovoid to ovoid, glabrous; style very short ; stigma capitate ; drupe globose, 

 about 5 mm. in diameter. 



Type locality : Warm and arid regions of Venezuela, especially of the province of Cumana, 

 Barzelona, and Coro. 



Distribution: (Mexico?) ; Trinidad; also in northern South America. 



Illustrations: Karst. Fl. Columb./)/. 15S,f. 1. 



Note. Imperfect material collected in Mexico may belong to this species. 



5. Amyris diatrypa Spreng. Neue Entd. 3 : 48. 1822. 

 A shrub or tree, 3-10 m. tall, the young growth and branches of the inflorescence 

 minutely puberulent ; leaves opposite, with petioles 0.5-1.5 cm. long; leaflets 3, elliptic 

 to nearly orbicular, or obovate, acute, obtuse or emarginate at the apex, narrowly to 

 broadly cuneate or rounded at the base, 1-3 cm. long, 0.6-2 cm. broad, entire or obso- 

 letely crenulate, coarsely glandular-punctate with black glands, shining above, beneath 

 minutely puberulent, especially on the veins ; inflorescence terminal, paniculate, few-many- 



