208 BORAGINACEAE. 



303. MYOSOTIS. 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. 



Perennial; calyx hairs straight; corolla blue. M. laxa. 



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



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; 

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

 1-1.5 mm. long; scar minute. In wet places, Walla Walla, Savage. 



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-grey, 1-1.5 mm. long; scars minute. Moist ground, not rare. 



304. LITHOSPERMUM. 



Mostly herbs with reddish roots; leaves sessile; flowers leafy - 

 bracted, axillary or subaxillary; calyx 5-parted; corolla salver- 

 form, funnelform or sometimes approaching campanulate; fila- 

 ments mostly very short; anthers short, included; style slender; 

 stigma mostly truncate, capitate or 2-lobed; nutlets ovoid, bony, 

 either polished and white or dull and rough. 



Lithospermum ruderale Dougl. Perennial, tufted, the stems simple, 

 15-30 cm. high, pubescent with long and short hairs; leaves numerous, lanceo- 

 late, rarely linear, attenuate-acute, sessile, 5-10 cm. long, minutely soft-hispid; 

 flowers in a dense leafy cluster; corolla greenish-yellow, campanulate-funnel- 

 form, pubescent inside, nearly naked in the throat, 10-12 mm. long; style 

 slender; nutlets light-colored, ovate, acute, hard and smooth, 3-4 mm. long. 

 Common on hillsides. 



305. AMSINCKIA. 



Rough-hispid annuals; leaves oblong or linear; corolla salver- 

 form or tubular-funnelform with a slender tube and open throat, 

 the limb sometimes plaited at the sinuses, yellow; style filiform; 

 stigma capitate or 2-parted; nutlets crustaceous or coriaceous, 

 unappendaged, ovate-triangular, attached below the middle to 

 an oblong-pyramidal gynobase. 



Erect; calyx-lobes linear. A. intermedia. 



Spreading; calyx-lobes lanceolate or ovate, 2 or 3 of them often 



united. A. lycopsoides. 



