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STANDLEY TEEES AND SHRUBS OF MEXICO. 1225 



1. Bourreria pulchra Millsp. Field Mus. Bot. 2: 338. 1912. 

 Cordia pulchra Millsp. Bot. Jahrb. Engler 36: Beibl. 80: 24. 1905. 

 Yucat&n. 



Leaves oblanceolate-oblong to elliptic-oval, 5 to 8 cm. long, obtuse, cuneate 

 to rounded at base, minutely tomentulose beneath ; cymes large, many-flow- 

 ered ; calyx 6 mm. long ; corolla about 18 mm. long. 



2. Bourreria formosa (DC.) Hemsl. Biol. Centr. Amer. Bot. 2: 369. pi. 59. 1882. 

 Ehretia formosa DC. Prodr. 9: 510. 1845. 



Ehretia formosa oaxacana DC. Prodr. 9: 510. 1845. 



Oaxaca; tjT)e from Tehuantepec. Guatemala and El Salvador, 



Tree, glabrous throughout or nearly so ; leaves slender-petiolate, oval to el- 

 liptic-oblong, 7 to 11 cm. long, obtuse to acuminate ; cymes large, many-flow- 

 ered; calyx 6 to 8 ram. long. " Quisjoche " (Costa Rica, cultivated) ; " esquin- 

 suche," " list6n " (El Salvador). 



In El Salvador the dried flowers are added to the fermented beverage known 

 as " agua dulce," which is prepared from crude sugar. 



3. Bourreria purpusii T. S. Brandeg. Univ. Calif. Publ. Bot. 6: 191. 1915. 

 Type from San Geronimo, Oaxaca. 



Shrub ; leaves broadly ovate or rounded-ovate, 8 to 12 cm. long, acute, thinly 

 pilose beneath, at least when young ; cymes large, many-flowered ; calyx 4 mm. 

 long. 



4. Bourreria rekoi Standi., sp. nov. 



Type from Cafetal Alianza, Oaxaca, altitude 700 meters (Reko 3766; U. S. 

 Nat. Herb. no. 887814). 



Young branches sparsely hirtellous; leaves slender-petiolate, obovate or 

 obovate-oblong, 8 to 16 cm. long, 4 to 8 cm. wide, abruptly short-acuminate, 

 cuneate at base, glabrate above, sparsely and minutely hirtellous beneath or 

 glabrate ; cymes rather few-flowered, pedunculate ; calyx 10 to 11 mm. long, 

 the 5 or 6 lobes shorter than the tube, acuminate, densely hirtellous outside, 

 tomentose within ; corolla granular outside, the tube about 17 mm. long, the 

 lobes 1 cm. long ; filaments pubescent below. 



5. Bourreria revoluta H. B. K. Nov. Gen. & Sp. 3: 67. 1819. 

 Type from Regla, Hidalgo. 



Leaves obovate, 3.5 to 5 cm. long, obtuse, acute at base, coriaceous, reticu- 

 late-veined ; cymes pedunculate ; calyx tubular-eampanulate, 5-dentate, pubes- 

 cent ; fruit subglobose, red. 



6. Bourreria obovata Eastw. Proc. Amer. Acad. 44: 606. 1909. 

 Oaxaca ; type from Jayacatlan, altitude 1,300 meters. 



Leaves obovate, rounded or retuse at apex, attenuate to base ; calyx 5-den- 

 tate, the teeth acute ; corolla lobes 5 mm. long. 



7. Bourreria sonorae S. Wats. Proc. Amer. Acad. 24: 62. 1889. 

 Baja California and Sonora; type from Guaymas, Sonora. 



Shrub or small tree, 3 to 6 meters high ; leaves oblanceolate-oblong to 

 rounded-obovate, 2 to 5 cm. long, rounded at apex, obtuse to attenuate at 

 base, very scabrous above, with prominent reticulate venation ; cymes few- 

 flowered or reduced to a single flower ; corolla about 1 cm. long ; fruit black, 

 1 cm. or less in diameter. 



The fruit is said to be edible and to have a flavor suggesting that of haw- 

 thorn {Crataegus) fruit. 



