274 NORTH AMERICAN FLORA [Volume 25 



deep-saucer-shaped, puberulent, the lobes semiorbicular; petals oblong to oblong-lanceolate, 

 12-13 mm. long, 2.5-4 mm. broad, acute; staminal tube columnar, puberulent; ovary conic 

 or oblong-ovoid, densely and shortly appressed-hirsute, 5-celled, sessile on the disk; style 

 columnar, appressed-hirsute; stigma discoid, glabrous; gynophore glabrous. 



Type locality: Near Atasta, Tabasco. 

 Distribution: Mexico. 



26. Guarea Trompillo C. DC. Ann. Cons. Jard. 

 Geneve 10: 147. 1907. 



A tree with the young twigs, petioles, and rachis hirsute; leaves 3.3-4.5 dm. long, long- 

 petioled, the petioles conspicuously channeled at the base; leaflets 6-12, opposite or sub- 

 opposite, elliptic-oblong, 14-18 cm. long, 5-6 mm. broad, punctate with minute, pellucid dots, 

 acute at the base, short-acuminate at the apex, glabrous above, sparingly papillose, hirsutulous 

 on the veins beneath, reticulate- veined; panicles raceme-like, 4 dm. long, the branches hirsute; 

 flowers sessile or subsessile; calyx appressed-puberulent, the lobes deltoid or suborbicular, 

 acute; petals oblong, 12-13.5 mm. long, 4 mm. broad, densely puberulent on the back, obtuse 

 or somewhat acutish at the apex; staminal tube 8-9 mm. high, glabrous, entire or nearly so; 

 ovary 5-celled, conic, densely and shortly appressed-hirsute; style columnar, appressed- 

 hirsute; stigma peltate; gynophore glabrous. 



Type locality: Vicinity of San Francisco de Miramar, Costa Cuca, Guatemala. 

 Distribution: Known only from the type locality. 



27. Guarea Pittieri C. DC. Smithson. Misc. Coll. 68 6 : 6. 1917. 



A tree, the young twigs velutinous-hirtellous, glabrate in age; leaves 20-23 cm. long, the 

 petioles 10-12 cm. long, minutely velutinous-puberulent with mostly appressed hairs, con- 

 spicuously channeled above at the base, the rachis minutely velutinous-puberulous with mostly 

 appressed hairs; leaflets 4-8, elliptic to elliptic-ovate, opposite, 12-17 cm. long, 5.5-7 cm. « 

 broad, acutish or somewhat rounded at the base, acuminate at the apex, glabrous above, 

 papillose, slightly puberulent on the veins beneath, minutely pellucid-dotted and with scattered 

 pellucid lines, short-petioluled; panicle equaling or longer than the leaves, the branches 

 velutinous-puberulous; flowers sessile or short-pedicelled ; calyx 4- or 5-lobed, 5-6 mm. 

 broad, minutely hirtellous; petals oblong, 9-10 mm. long, densely appresscd-hirtellous on the 

 back; staminal tube cylindric, 8-9 mm. high, hirsute on the outside with scattered, appressed 

 hairs; anthers elliptic; ovary 5-celled, conic, densely short-appressed-hirsute; gynophore 

 glabrous. 



Type locality: Tuis, near Turrialba, Costa Rica. 

 Distribution: Known only from the type locality. 



28. Guarea longipetiola C. DC. Smithson. Misc. Coll. 68 6 ; 5. 1917. 



Leaves 4 dm. or more long, long-petioled, the petioles and rachis puberulent; leaflets 8, 

 opposite, thin, oblong-oblanceolete or oblong-elliptic, 14-25 cm. long, 6-8 cm. broad, abruptly 

 acuminate at the apex, acute and often equilateral at the base, glabrous above, the midrib 

 and lateral veins impressed, puberulent beneath, the veins prominent; petiolules 0.5-1.2 cm. 

 long; flowers unknown; capsule globose-pyriform, short-pedicelled, 4.5-5 cm. long, 2.5-3 

 cm. in diameter, appressed-pilose, 5-celled, one of the cells sometimes abortive. 



Type locality: Boca de Pauarando, on the Sambu River, southern Darien, Panama. 

 Distribution: Panama. 



29. Guarea culebrana C. DC. Smithson. Misc. Coll. 68 6 : 5. 1917. 



Leaves 6 dm. or more long, short-petioled, the petioles and rachis puberulent; leaflets 30, 

 opposite, thin, 26-29 cm. long, 8-9.5 cm. broad, elliptic-obovate, short-acuminate at the apex, 

 acute and equilateral at the base, glabrous above, the midvein impressed, puberulent beneath, 

 the petiolules 2-3 mm. long; capsule (immature) globose-obovoid, appressed-pilose, 5-celled. 



Type locality: Along the Rio Culebra, above Santa Isabel, Colon, Panama. 

 Distribution: Panama. 



