312 Polemoniaceae 



1. MICROSTERIS Greene. 



Small much branched annuals with entire leaves, all 

 except floral ones opposite, ami minute flowers scattered 

 singly or in pairs in the axils of the alternate leaves. 

 Calyx tubular, 5-cleft, the lobes acute, scarious-margined. 

 ( !orolla salver-shaped, the tube narrow. Stamens straight, 

 short, unequally inserted on the corolla-tube. Capsule 

 3-celled, at length distending and rupturing the calyx- 

 tube. Seeds few. large, the coat when moistened develop- 

 ing a thick glutinous mass. 



1. M. Californica Greene. Slender, 1-2 dm. high, loosely and 

 somewhat dichotomously branched from the middle; leaves from 

 obovate-subulate in the lowest to oblong and oblong-lanceolate, 

 1-2 cm. long, all more or less pubescent with scattered hairs, a 

 few line gland-tipped hairs on the flowering branches and calyx ; 

 calyx-teeth slightly shorter than the tube ; corolla red, the lobes 

 emarginate, little surpassing the calyx; capsule ovoid. (Collomia 

 gracilis of recent authors, not of Douglas.) 

 Occasional in shady places in the foothills. 



Collomia grandiflora Dougl. A strict erect annual, with 

 entire oblong-lanceolate leaves, and large salmon-colored flowers 

 in terminal and axillary heads. 



Common in open pine woods in the San Bernardino, San Jacinto and Cuya- 

 maca Mountains. 



2. NAVARRETIA R. & P. 



Glabrous and scentless or viscid-pubescenl and heavy- 

 scented animal herbs, with leaves all alternate setace- 

 ously or spinosely pinnatifidj or the lowest subentire. 

 Flowers in crowded bracted clusters at the ends of the 

 branches. Calyx-tube scarious between the green angu- 

 lar or costate segments, unequal, erecl or spreading, 

 pungent-tipped or pungent-cleft, the 2 outer sometimes 

 spinulose-toothed or -deft. Corolla-tube funnelform or 

 salver-shaped. Stamens and style exserted or included, 



straighl ordeclined. Capsule L-3-celled, L— many-seeded, 



