272 NORTH AMERICAN FLORA [Volume 25 



base, sessile or nearly so, all membranaceous and loosely setose-pilose especially on the midrib 

 and primary veins beneath, the margin conspicuously ciliate; calyx rather deeply lobed, the 

 lobes narrowly triangular, acute, setose-pilose, the hairs spreading; petals oblong, 3-3.5 mm. 

 long, 1.5 mm. broad, setose-pilose; staminal tube cylindric, glabrous, 3 mm. high; ovary 

 4-celled, narrowly conic, setose-pilose. 



Type locality: Boca Culebra, Comarca de Limon, Costa Rica. 

 Distribution: Costa Rica. 



20. Guarea chiapensis Blake, Proc. Biol. Soc. Wash. 

 34: 115. 1921. 



Twigs rather slender, strigillose; leaves 2-2.5 dm. long, the petioles and rachis strigillose; 

 leaflets 4 or 6, thin, opposite, and obovate, obovate-elliptic, or elliptic, the larger 12-17 cm. long, 

 5-6.4 cm. wide, obtusely short-acuminate at the apex, cuneate at the base, dark-green and 

 puberulent along the veins above, paler and strigillose along the midrib and lateral veins be- 

 neath; panicles axillary, 5 cm. long, the branches strigillose; calyx about 2.8 mm. broad, 

 strigillose, shallowly 4-toothed, the teeth deltoid, acutish; petals 4, oblong, 5.5-6 mm. long, 

 1.2-1.8 mm. broad, obtuse, densely strigillose on the back; stamens 8, the tube 4—4.5 mm. 

 long, minutely and sparingly strigillose outside, shallowly 8-crenate, the narrowly oblong 

 anthers about 1.2 mm. long; ovary densely strigillose, 4-celled, the slender style nearly glabrous, 

 2 mm. long, the stigma subcapitate. 



Type locality: Finca Irlanda. Chiapas. 

 Distribution: Known only from the type locality. 



21. Guarea Guara (Jacq.) P. Wilson. 



Melia Guara Jacq. Enum. PI. Carib. 20. 1760. 



Trichilia Guara I,. Sp. PI. ed. 2. 551. 1762. 



Guarea trichilioides L. Mant. 228. 1771. 



iTrichilia quadrijuga Spreng. Svst. 3: 67, in part. 1826. 



Guarea trichilioides pallida C. DC. in Mart. Fl. Bras. II 1 : 184. 1878. 



?Guarea pauciflora Moc. & Sesse. Fl. Mex. ed. 2. 92. 1894. 



Guarea Cabirme C. DC. Ann. Cons. Jard. Geneve 10: 143. 1907. 



Guarea parva C. DC. Smithson. Misc. Coll. 68 6 : 3. 1917. 



A small or medium-sized tree, frequently 7-20 m. tall, or occasionally a forest tree attaining 

 a height of 45 m.; leaves equally pinnate, 1-3 dm. long; leaflets 8-20, opposite or subopposite, 

 short-petioluled, elliptic to elliptic-lanceolate or oblong-obovate, 8-24 cm. long, occasionally 

 longer, 3-8 cm. broad, punctate with slender, elongate, often curved pellucid lines, usually 

 abruptly and obtusely short-acuminate at the apex, acute and equilateral at the base, glabrous 

 on both surfaces, rather obscurely reticulate-veined, the veins slender; panicles 5-23 cm. 

 high, the branches pubescent with short hairs; flowers short-pedicelled; calyx shallow, the 

 stipe-like base often exceeding the pedicels in length; calyx-lobes half-orbicular or half- 

 orbicular-obovate, entire or toothed, pubescent on the back with short hairs; petals oblong, 

 5-7.5 mm. long, 2-3 mm. broad, free, greenish-white, densely pubescent on the back with 

 short, closely-appressed, grayish-green hairs; staminal tube urn-shaped or cylindric urn-shaped, 

 glabrous, or sometimes puberulent, entire or shallowly lobed; anthers oblong, barely exserted ; 

 disk elevated, with a rather prominent ring of stiff hairs on its inner edge surrounding the 

 base of the ovary; ovary ellipsoid or subglobose, closely sessile on the disk, pubescent with 

 short, mostly appressed hairs; style columnar, pubescent; stigma disc-shaped; capsule 

 obovoid or globose-obovoid, 1.5-1.9 cm. in diameter, glabrous, conspicuously brown-spotted; 

 seeds ellipsoid, 9-13 mm. long. 



Type locality: Mountains of Cuba. 



Distribution: Cuba, Hispaniola, Porto Rico, and St. Croij; Panama; also in South America. 



22. Guarea Rovirosae C. DC. Ann. Cons. Jard. 

 Geneve 10: 145. 1907. 



A tree, the young twigs puberulent, glabrous in age; leaves alternate, 9 cm. or more 

 long, the petioles and rachis sparingly pilose; leaflets 4, opposite, elliptic-lanceolate to some- 



