STANDLEY TSEES AND SHRUBS OF MEXICO. 1273 



2. Trichostema arizonieum A. Gray, Proc. Amer. Acad. 8: 371. 1872. 



Xortlieastern Sonora. Arizona and New Mexico ; type from Cbiricahiia 

 Mountains, Arizona. 



Plants 60 cm. high or less, woody below, puberulent ; leaves petiolate, 1 to 

 2 cm, long, obtuse ; flower clusters axillary, on long slender peduncles ; corolla 

 blue or whitish, 1 cm. long. 



9. CLINOPODIUM: L. Sp. PI. 587. 1753. 



Small shrubs or herbs ; leaves entire or dentate ; flowers axillary ; calyx 

 tubular, 13-nerved, bilabiate, the posterior lip 3-dentate, the anterior one 2- 

 parted ; corolla tube usually exserted, the limb bilabiate ; stamens 4. 



One herbaceous species occurs in Baja California. 



Leaves 1 to 1.5 cm. long; petioles about as long as the blades. 



1. C. oaxacanum. 

 Leaves mostly 3 to 7 cm. long; petioles much less than half as long as the 

 blades. 



Branches villous-hirsute 2. C. macrostemum 



Branches finely puberulent or glabrous 3. C. laevig'atum. 



1. Clinopodium oaxacanum (Fernald) Standi. 



Calamintha oaxacana Fernald, Proc. Amer. Acad. 35: 564. 1900. 

 Ty^Q collected between El Parian and Etla, Oaxaca, altitude 1,200 meters. 

 Shrub with slender glabrate branches ; leaves elliptic-ovate, acute, sharply 

 serrate; flowers solitary in the leaf axils; corolla red, about 3 cm. long. 



2. Clinopodium macrostemum (Benth.) Kuntze, Rev. Gen. PI. 2: 515. 1891. 

 Calamintha niacrosteina Benth. in DO. Prodr. 12: 229. 1848. 



Mexico and Morelos, and perhaps in neighboring States. 



Shrub, sometimes 2.5 meters high ; leaves ovate or oblong-ovate, acuminate, 

 Berrate, sparsely villous-hirsute beneath ; corolla about 3 cm. long. " Taba- 

 quillo," " te del monte " (Mexico). 



A decoction of the plant is employed as a remedy for affections of the stom- 

 ach and intestines. The leaves are emplojed as a substitute for Chinese tea. 



3. Clinopodium. laevigatum Standi., sp. nov. 



Sinaloa to Oaxaca; type from Cerro San Felipe, Oaxaca (Nelson 1117; U. S. 

 Nat. Herb, no 565856). 



Shrub, 0.5 to 1.5 meters high, the branchlets minutely puberulent or glabrate, 

 barbate at the nodes ; leaves short-petiolate, lance-oblong to ovate-oblong, 2 

 to 8 cm. long, acute or acuminate, obtuse or acute at base, serrate or subentire, 

 usually glabrous but sometimes sparsely scabrous above and hirtellous be- 

 neath along the costa; flowers in few-flowered axillary pedunculate cymes; 

 calyx about 9 mm. long, glabi-ous; corolla about 2.5 cm. long. " Poleo " (Sina- 

 loa) ; "nurite," " t6 nurite " (Michoacan) ; " guie-zaa " (Oaxaca, Zapotec, 

 Reko) ; " hierba del borracho " (Oaxaca); " te del monte" (Oaxaca, Michoa- 

 can). 



Tea made from the leaves, sweetened with sugar, is a popular beverage in 

 some places along the western coast of Mexico. It is considered a remedy for 

 kidney troubles and a good tonic after malarial and other fevers. 



10. HYPTIS Jacq. Coll. Bot. 1: 101. 1786. 



Shrubs or herbs; leaves usually toothed; calyx tubular, ovoid, or campauu- 

 late, the 5 lobes equal; corolla bilabiate, the upper lip erect or spreading, the 

 lower saccate ; stamens 4. 



Numerous herbaceous species of the genus occur in Mexico. 



