Dowell : North American species of Calceolaria 549 



Leaves crenate-serrate, pubescent. 9. C. verbenacea. 



Leaves more than twice as long as broad. 



Leaves mostly linear, the lowest sometimes 



wider. 



Leaves obovate to oblong-linear, 2- 



3 cm. long. io . C. stricta. 



' Leaves lance-linear to linear, 4-8 cm. 



lon g. II. C. angusti folia. 



Leaves mostly lanceolate. 



Leaves gradually tapering at the 



base. 12. C riparia. 



Leaves truncate or abruptly tapering 



at the base. 1 3. C nigricans. 



Stipules larger, foliaceous. 



Leaves ovate to orbicular, mostly obtuse. 



Leaves mostly opposite. 14. C humilis. 



Leaves mostly alternate. 15. C. Rosti. 



Leaves lanceolate to linear. J 16. C. sp. 



I. Calceolaria verticillata (Ort.) Kuntze 



Viola verticillata Ort. Dec. 4 : 50. 1797. 



Solea verticillata Spreng. Jour. Bot. Schrad. 4 : 192. //. 6. 1800. 



lonidium polygalaefolium Vent. Jard. Malm, pi 27. 1804. 



efolia 



1808. 



lonidium lineare Torr. Ann. Lye. N. Y. 2 : 168. 1828. 



* 



lonidium stipulaceum Nutt. ; Torr. & Gray, Fl. N. Am. 1: 144. 



1838. 

 Calceolaria verticillata Kuntze, Rev. Gen. PL 41. 1891. 



This species is reported as " intertropical both in the New 

 and the Old World. " It has been found as far north as Colorado 

 and is common in the southwestern states and in Mexico. It 

 shows considerable variation in the length and shape of its leaves, 

 which are short and obovate in some specimens and long and 

 linear in others, with numerous intermediate forms. 



2. Calceolaria glutinosa (Vent.) Kuntze 



lonidium glutinosum Vent. Jard. Malm. pL 27. 1804. 

 Viola glutinosa Poir. Enc. Meth. 8: 647. 1808. 

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

 Calceolaria glutinosa Kuntze, Rev. Gen. PI. 41. 1 89 1. 



The specimens collected on ballast near Communipaw Ferry, 

 N. J., by Jos. Schrenk, July 20, 1880, and by Addison Brown, 

 September, 1880, are like the South American specimens. There 



