138 KEY AND FLORA 



III. CYNOGLOS'SUM, Hound's Tongue, Forget-me-not 



Calyx 5-parted, open in fruit. Corolla tubular or salver-form, 

 with conspicuous crests in the throat. Nutlets 4) covered over 

 the back with short, stout prickles with barbed tips, forming burs. 

 These are rather coarse perennials, with large leaves and 

 thick roots. 



C. gran'de Dougl. Stems a foot or two high, branching above. 

 Leaves mostly at the base on long petioles, oblong-ovate. Flowers in 

 panicled racemes on a long naked peduncle. Corolla similar to 

 the fcrget-me-not, but larger, at first pinkish, with white crests in 

 the tnroat, turning blue after pollination. Monterey County to 

 Washington. 



IV. MERTEN'SIA, Bluebells 



Stems erect, leafy, not hispid, sometimes smooth. Leaves 

 broad, the upper ones sessile, the lower petioled. Flowers 

 nodding, in cymes or panicled racemes. Corolla blue, often 

 turning pink after pollination, trumpet-shaped or bell-shaped, 

 with folds in the throat. Nutlets sessile, on aflat or slightly 

 convex receptacle. 



a. M. oblongifo'lia Don. Stems about a foot high, almost smooth. 

 Leaves oblong or somewhat spatulate, rather succulent and with 

 veins scarcely evident. Corolla blue, with tube twice as long as the 

 border, together about half an inch long. Flowers in a close, terminal 

 cluster. Stamens with the filaments as broad as the anthers and 

 about the same length, inserted in the throat of the corolla. Bloom- 

 ing in early spring, growing on moist banks. Oregon to British 

 Columbia. 



b. M. panicula'ta Don. Stems 1-5 ft. high, more or less rough 

 with pubescence. Leaves broad, veiny, ovate to oblong-lanceolate. 

 Flowers blue, in loosely panicled racemes. Corolla tube but little 

 longer than the border, about as long as the hairy, linear, calyx divisions, 

 together a half inch or more in length. From Washington to the 

 Arctic regions. 



(Most of the other genera are in a state of confusion, because 

 of the differences of opinion among botanists. The differ- 

 ences between them lie chiefly in the seeds, and they are 

 difficult to distinguish.) 



