68 Sierra Club Publications. 



POLEMONIACE/E. Phlox Family. 



KEV XO THE GEPKERA. 



Calyx papery or leathery at base only ; seed-coats when wet be- 

 coming mucilaginous and sending out spirally coiled threads. 



Flowers crowded in heads ; calyx, bracts and leaves with narrow, 

 spine-tipped divisions Navarretia. 



Flowers in heads or scattered ; calyx, leaves and bracts not spine- 

 tipped Collomia. 



Calyx papery or leathery between the angles ; seeds with or 

 without mucilage and spinal threads when wet. 



Stamens inserted on the tube at the same level. 



Leaves alternate Gilia. 



Leaves opposite I/inanthus. 



Stamens not inserted at the sa7ne level. 



Leaves opposite, simple ; seeds unaltered when wet. Phlox. 



Lower leaves opposite, upper alternate ; seeds when v/et becom- 

 ing mucilaginous but without spiral threads. Microsteris. 



Calyx entirely green, without papery or leathery base or angles. 

 Polemonium, Jacob's Ladder. 



Navarretia divaricata Greene. Annual, low and branching, 

 an inch or so high, with slender, naked stems, dark green, 

 woolly-pubescent. Leaves with short, thread-like divisions ; 

 bracts wedge-shaped at base, with 3-5 divisions, very woolly. 

 Calyx surpassing the corolla, X i^^- ^oJ^g. the spine-tipped 

 divisions unequal, the longest twice the length of the strongly- 

 ribbed tube. Corolla magenta with slender tube, salver-form, 

 very small. Pod obovate, with several seeds. General Grant Park. 



Collomia grandiflora Gray. Annual, with stout, erect stems 

 1-2 feet high, having short, flowering branches or none, pubes- 

 cent and glandular. Leaves lanceolate, 1-3 in. long, acute. 

 Flowers in heads terminating the branchlels and stems, leafy at 

 base. Corolla salmon-color, i in. long, salver-form, the border 

 y^ in. across. Kings River Canon, Millwood. 



Collomia linearis Nutt. Annual, branching near the top or 

 simple, less than a foot high, pubescent and glandular. Leaves 

 linear-lanceolate, pointed, sessile, increasing in size towards the 

 summit. Flowers in heads on short peduncles, generally sur- 

 passed by the surrounding leaves. Corolla small, pink, salver- 

 form, with the tube thread-like. Kings River, near Bubbs Creek. 



Gilia gilioides Benth. Annual, with slender, weak, branch- 

 ing stems, glandular pubescent. Leaves once or twice divided 



