554 Dowell : Nokth American species of Calceolaria 



ii. Calceolaria angustifolia (H. B. K.) 



Ionidium angustifolium H. B. K. Nov. Gen. & Sp. 5 : 377- 1821. 

 Solea longifolia Spreng. Syst. 1: 803. 1825. 



Mexico : San Luis Potosi, C. G. Pringle 110.5011, August 21, 

 1 89 1. Also Prov. Huasteca, near Tantoyuca, L. C. Brvendberg 

 no. 210, September, 1858. These specimens are in the Gray 

 Herbarium. 



The determination is based entirely on description. Sprengel 

 considers his Solea longifolia a variety of vS. stricta. 



12. Calceolaria riparia (H. B. K.) Kuntze 



Ionidium riparium H. B. K. Nov. Gen. & Sp. 5 : 378. 1821. 



Ii 



Ionidium parietariaefolinm DC. Prod. 1 : 308. 1824. 



* 



iparia Spreng. Syst. 1 : 803. 1891. 



riparia 



1 89 1. 



Wh 



* 



sidered as belonging here are varying forms of the same species or 

 not is a question that could best be answered by field work. I 



* 



hesitate to put down /. parietariaefolinm as a synonym of /. ripa- 

 rium, but DeCandolle's description of /. parietariaefolinm is too 

 meager to make sure of his plants. His variety Houstoni, how- 

 ever, is recognizable in some of the herbarium material. We in- 

 clude here under C. riparia such specimens as Wright no. 8jp 

 from Sonora, Mexico, collected in 185 1 ; E. Palmer no. 1826 from 

 Tepic, Mexico, 1 892 ; and T. S. Brandegee's specimen from El 

 Taste, Lower California, November, * 1902. These specimens 

 differ considerably, however, from such as E. Palmer nos. 25 and 

 pj from Chihuahua, Mexico, 1885, and C. G. Pringle no. 6jpi 



Morelos, Mexico, J 



parietariaefolium 



riparia Houstoni (DC.) 



308. 1824. 



This is characterized chiefly by its more prominently sharp- 



toothed leaves. 



M. 



no. 2661 from Orizaba, Mexico, 1865-6, and Rose & Hay 



61 



13. Calceolaria nigricans sp. no v. • 



Stem woody, puberulent, terete; leaves alternate, the blade 

 ovate-oblong, mostly acute and pointed, truncate and somewhat 



