1094 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Shrub ; leaves 2 to 8 cm. long, acuminate, serrulate, sparsely pubescent or 

 glabrate, short-petiolate ; racemes 3 to 9 cm. long, lax ; corolla pink, 6 to 7 mm. 

 long; capsule about 5 mm. in diameter. 



11. Gaultheria hirtiflora Benth. PI. Hartw. 66. 1840. 



Oaultheria cordata Mart. & Gal. Bull. Acad. Brux. 9^: 540. 1842. 



Puebla, Oaxaca, and Chiapas; type from Carmen, Oaxaca. Guatemala. 



Leaves 3 to 9 cm. long, acute or obtuse, often deeply cordate at base, ser- 

 rulate, pubescent or glabrate; racemes 3 to 6 cm. long; corolla pink or red, 

 6 to 7 mm. long ; capsule 4 to 5 mm. in diameter. 



This is not strikingly different from O. odorata, and is perhaps only a form 

 of that species. 



DOUBTFUL SPECIES. 



Gaultheria ovata DC. Prodr. 7: 596. 1839. Type collected between Tampico 

 and Real del Monte. Probably the same as O. nitida Benth. 



Gaultheria insipida Benth., placed by Small among the doubtful North 

 American species, was described from Ecuador. 



5. ARCTOSTAPHYLOS Adans. Fam. PI. 2: 165. 1763. 



Shrubs or small trees ; leaves alternate, rarely opposite, persistent, petiolate, 

 entire or serrate ; flowers in terminal racemes or panicles, small, white or 

 pink ; calyx 5-lobed ; corolla urceolate, with 5 short lobes ; stamens 10, the 

 anthers each with 2 dorsal awns ; fruit drupaceous, globose, smooth or papil- 

 lose, containing 10 or fewer seedlike nutlets. 



The following names are reported for species whose identity is uncertain : 

 "Guie-yana," " yaga-nita," " yaga-yana " (Oaxaca, Zapotec, Reko) ; "nino 

 en cuero," "verdis" (Oaxaca, Reko); "tepetomate" {Robelo) ; "frutilla" 

 (Mexico, Ramirez). 



Leaves opposite or verticillate 1. A. oppositifolia. 



Leaves alternate. 

 Leaves conspicuously serrate. 

 Leaves glabrous, even when young. 



Leaves green beneath ; fruit 4 to 5 mm. in diameter 2. A, lucida. 



Leaves glaucous beneath ; fruit 7 to 8 mm. in diameter 3. A. arguta. 



Leaves tomentose beneath, at least when young. 

 Ovary pubescent. 



Calyx glandular-pubescent 4. A. nochistlanensis. 



Calj'^x grayish-tomentulose 5. A. diversifolia. 



Ovary glabrous. 

 Leaves broadly oblong to obovate or elliptic, 2 to 5 cm. long. 



6. A. conzattii. 

 Leaves narrowly oblong, usually larger. 



Leaves remotely and inconspicuously serrate 7. A. angustifolia. 



Leaves closely and conspicuously serrate. 



Inflorescence glandular-hirsute 8. A. longifolia. 



Inflorescence tomentulose 9. A. rupestris. 



Tieaves entire. 

 Fruit papillose or warty; leaves narrow, mostly oblong to linear, narrow 

 at base. 

 Filaments glabrous 10. A. glaucescens. 



