1288 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



13. Lycium torreyi A. Gray, Proc. Amer. Acad. 6: 47. 1862. 



Chihuahua. Western Texas to southern California ; type collected in Texas 

 on the Rio Grande. 



Spiny shrub, 1 to 2.5 meters high, glabrous ; leaves 3.5 cm. long or less, ob- 

 tuse or acute, attenuate to base; flowers short-pedicellate; corolla about 1 cm. 

 long, purplish; fruit red. " Garambullo " (Chihuahua); " tomatillo " (New 

 Mexico). 



14. Lycium cedrosense Greene, Pittonia 1: 268. 1889. 



Lycium andersonii pubescens S. Wats. Proc. Amer. Acad. 24: 65. 1889. 

 Baja California ; type from Cedros Island. 



Spiny shrub, finely puberulent throughout ; leaves obovate to narrowly spatu- 

 late, 1 cm. long or less, obtuse ; flowers short-pedicellate. 



15. Lycium calif omicum Nutt. ; A. Gray in Brewer & Wats. Bot. Calif. 1: 542. 

 1876. 



Baja California. Southern California; type from San Diego. 

 Low, stiff shrub; leaves linear or nearly so, 1 cm. long or less, very fleshy; 

 flowers short-pedicellate; corolla white, the limb with 4 rounded lobes. 



16. Lycium barbinodum Miers, Ann. Mag. Nat. Hist. II. 14: 138. 1854. 

 Sonora and Sinaloa to Zacatecas and Coahuila. 



Shrub, 1 to 2 meters high, with splnose branchlets ; leaves linear-spatulate, 

 mostly 1 cm. long or less, obtuse; corolla white. "Agrita" (Zacatecas). 



17. Lycium peninsulare T. S. Brandeg. Univ. Calif. Publ. Bot. 6: 359. 1916. 

 Baja California ; type from San Jos6 del Cabo. 



Spiny glabrous shrub ; leaves linear-spatulate to obovate, 2 cm. long or less, 

 rounded or obtuse at apex ; flowers on short or elongate pedicels. 

 Probably not distinct from L. harbinode. 



7. ACNISTUS Schott, Wien. Zeitschr. 4: 1180. 1829. 



Unarmed shrubs ; leaves entire ; pedicels solitary or fasciculate ; cals^ 

 campanulate, truncate or 5-dentate, not accrescent ; corolla tubular or funnel- 

 form, 5-lobate, the lobes induplicate-valvate ; stamens 5 ; fruit a globose 

 2-celled berry. 



Corolla 12 mm. long 1. A. macrophyllus. 



Corolla 8 mm. long 2. A. pringlei. 



1. Acnistus macrophyllus (Benth.) Standi. 

 Lycium macrophyllum Benth. PI. Hartw. 49. 1840. 

 Acnistus benthami Miers, Lond. Journ. Bot. 4: 342. 1845. 

 MichoacS,n ; type from Morelia. 



Leaves petiolate, oblong, about 10 cm. long, acute at base and apex, glabrous 

 above, puberulent beneath ; calyx cupuliform, 3 to 4 mm. long. 



2. Acnistus pringlei Fernald, Proc. Amer. Acad. 40: 56. 1904. 



Type from Valley of Zamora, MichoacS,n, altitude 1,500 meters. 



Shrub, 3 to 4.5 meters high ; leaves elliptic-lanceolate or lance-oblong 4 to 

 11 cm. long, acute, thinly tomentulose or glabrate beneath ; calyx 2 to 3 mm. 

 long, glabrous, the lobes obtuse ; corolla glabrous ; fruit about 7 mm. in 

 diameter. 



Probably not distinct from A. macrophyllus. 



