302 BORAGINACEAE. 



somewhat papillate above; pedicels appressed-pubescent; calyx-lobes linear- 

 lanceolate, pubescent on the back, ciliate; corolla blue, 10-12 mm. long, much 

 enlarged in the throat. 



In woods near the ocean coast in Washington. 



Mertensia subcordata Greene. Stems erect, 30-90 cm. high; leaves ovate, 

 acute or acuminate, rounded or subcordate at base, pilose beneath, smooth 

 or papillose above, petioled, 5-8 cm. long; petioles hairy; pedicels pubescent; 

 calyx-lobes oblong-lanceolate, pubescent on the back; corolla blue, 10 mm. 

 long. 



In open woods in the Cascade Mountains. 



Mertensia leptophylla Piper. Stems glabrous, stout, erect, a meter or 

 more high; leaves ovate, acute, pilose beneath, glabrous above, ciliate, very 

 thin, the blades 6-10 cm. long, all on margined petioles 1-3 cm. long; inflores- 

 cence loose; pedicels with spreading pubescence; calyx parted nearly to the 

 base, the lobes narrowly triangular-lanceolate, acute, ciliate, smooth on the 

 back; corolla blue, about 12 mm. long, the slightly enlarged throat as long as 

 the tube; filaments dilated, shorter than the anthers. 



Known only from the Olympic Mountains of Clallam County, Washington, 

 Elmer ; Lawrence. Perhaps not distinct from M. subcordata Greene. 



417. jflYOSOTIS. FORGET-ME-NOT. 



Low spreading herbs, usually soft-hairy; cauline leaves sessile; 

 flowers blue or white, in at length elongated racemes, without 

 bracts; corolla short-salverform or almost rotate, its throat con- 

 tracted by transverse crests, the rounded lobes convolute in the 

 bud; anthers ovate or oblong; nutlets small, ovoid, smooth and 

 shining, thin-crustaceous ; scar small. 



Annual; calyx hairs hooked; corolla white. M. macrosperma. 

 Perennial; calyx hairs straight; corolla blue. 



Calyx-lobes shorter than the tube. M . scorpioides. 



Calyx-lobes longer than the tube. M . laxa. 



Myosotis macrosperma Engelm. Annual, erect, rough-hairy throughout, 

 10-40 cm. tall, branched above or simple; leaves oblong-linear or oblanceolate, 

 obtuse, sessile, 1-2 cm. long; racemes elongated and loose in fruit, leafy at 

 the base; pedicels shorter than the calyx; fruiting calyx 4-5 mm. long, deeply 

 5-cleft, the lobes lanceolate, unequal, hispid with hooked hairs; corolla small, 

 white; nutlets oval, biconvex with a narrow margin, very smooth and shiny, 

 silvery-gray, 1-1.5 mm. long; scars minute. 



In open ground, not common. 



Myosotis scorpioides L. Forget-me-not. Perennial, rough-pubescent; 

 stems decumbent and rooting at the lower nodes, 10-60 cm. long; leaves 

 oblong-lanceolate to linear-oblong, obtuse, narrowed at base, 2-6 cm. long, 

 the lower ones petioled; calyx-lobes triangular, shorter than the tube, appressed 

 pubescent; corolla 5-8 mm. broad, blue with a yellow center; nutlets keeled on 

 the ventral side. 



In wet places, often abundant. The true Forget-me-not, a native of 

 Europe. 



Myosotis laxa Lehm. Perennial from slender rootstocks, appressed- 

 pubescent throughout; stems weak and slender, 10-30 cm. long; leaves oblong- 

 lanceolate to spatulate, 2-3 cm. long; racemes very loose; pedicels much longer 

 than the calyx; calyx-lobes as long as or longer than the tube; corolla pale blue; 



