STANDLEY TKEES AND SHRUBS OF MEXICO. 287 



Staminodia of the inner series of stamens well developed, sagittate. 



Sepals usually deciduous 3. PERSE A. 



Sepals persistent 7. PHOEBE. 



Staminodia of the inner stamens minute or none, stipelike. 



Anther cells in pairs, one pair above the other 8. OCOTEA. 



Anther cells all inserted at nearly the same height— 9. NECTANDRA. 



1. LITSEA Lam. Encycl. 3: 574. 1789. 

 Reference: Bartlett, Proc. Amer. Acad. 44:597-602. 1909. 

 Shrubs or trees ; leaves comparatively small ; inflorescence short-racemose, 

 few-flowered, axillary, in bud surrounded by an involucre of 4 to 6 broad bracts; 

 perianth 6 or 4-lobed ; stamens usually 9 or 12, those of the first and second ranks 

 eglandular, those of the third and fourth ranks usually with a stipitate gland 

 on each side at the base ; anthers iutrorsely 4-celled. 



The aromatic leaves of all the species are used extensively for flavoring food. 

 Leaves copiously pubescent beneath. 



Inflorescences corymbose 1. L. neesiana. 



Inflorescences solitary or fasciculate 2. L. orizabae. 



Leaves glabrous or nearly so. 

 Leaf blades rounded or subcordate at base. 

 Inflorescences corymbose or paniculate. 



Pedicels much longer than the flowers 3. L. pedicellata. 



Pedicels shorter than the flowers 4. L. pringlei. 



Inflorescences solitary or fasciculate. 



Leaf blades rounded-ovate, obtuse 5. L. parvifolia. 



Leaf blades ovate-lanceolate, acute 6. L. novoleontis. 



Leaf blades acute or obtuse at base. 

 Leaves usually glaucous beneath, more than 2 cm. wide ; inflorescences 



corymbose 7. L. glaucescens. 



Leaves not glaucous beneath, 1.5 cm. wide or narrower ; inflorescences soli- 

 tary 8. L. schaffneri, 



1. Litsea neesiana (Schauer) Hemsl. Biol. Centr. Amer. Bot. 3:76. 1882. 

 Tetranthera weesiona Schauer, Linnaea 19:712. 1847. 



? Tetranthera villosa Mart. & Gal. Bull. Acad. Brux. 10 ^ 359. 1843. 



Veracruz to Sinaloa, Oaxaca, and Chiapas. 



Tree or shrub, 2 to 9 meters high ; leaves ovate, 2.5 to 5 cm. long, acute or 

 acuminate, green and glabrous above, pale and pubescent beneath. " Laurel " 

 (Chiapas) ; "laurel de la sierra" (Sinaloa). 



One collection placed here by the writer was referred by Bartlett to L. guate- 

 malcnsis Mez. The leaves are used in Sinaloa as a remedy for colic pains. 



2. Litsea orizabae (Mart. & Gal.) Mez. Jahrb. Bot. Gart. Mus. Berlin 5:479. 



1889. 

 Persea orizalac Mart. & Gal. Bull. Acad. Brux. 10 =: 358. 1843. 

 Known only from Mount Orizaba, at an altitude of about 4,000 meters. 

 Shrub ; leaves ovate, about 7.5 cm. long, acute. 



3. Litsea pedicellata Bartlett, Proc. Amer. Acad. 44: 598. 1909. 



Known only from the type locality, mountains near Saltillo, Coahuila, at an 

 altitude of 2.135 meters. 



Shrub, 1 to 2 meters high ; leaves orbicular-ovate, 2 to 3 cm. long, obtuse. 



4. Litsea pringlei Bartlett, Proc. Amer. Acad. 44: 598. 1909. 



Nuevo Leon and San Luis PotosI ; type from limestone ledges of the Sierra 

 Madre above Monterrey, Nuevo Leon, altitude 850 meters. 



Shrub, 1 to 2 meters high ; leaves ovate-lanceolate or ovate, 3 to 5 cm. long, 

 acute or attenuate. 



