BORAGINACEAE (BORAGE FAMILY) 189 



L. Annual; pedicels persistent; leaves mostly in a basal tuft; nutlets 

 keeled on both sides. PLAGIOBOTHRYS (p. 189) 



LL. Biennial or perennial; pedicels persistent; leaves scattered along 

 the stem; nutlets not keeled. OREOCARYA (.p. 190) 



LLL. Annual; pedicels deciduous (except in C. ^terocarya) ; leaves scat- 

 tered along the stem; nutlets not keeled (except some in C. pkrocarya) . — 

 (Gk. kryplos = hidden, anthos = a flower; because the corolla is some- 

 times very small.) Cryptanthe (Nievitas) 

 HHH. Flowers blue or purple or pink. 

 M. Nutlets erect; coroUa tubular-funnelform; plant not conspicuously 

 white-hairy nor silvery-hairy. MERTENSIA (p. 191) 

 MM. Nutlets ascending to' horizontal; corolla rotate or salverform; 

 plant conspicuously silvery- or white-hairy. ERITRICHITJM (p. 189) 

 EE. Nutlets attached by the very base. 

 N. Raceme bractless; roots slender; flowers white or blue; corolla lobes 

 convolute in the bud. MYOSOTIS (p. 190) 

 NN. Raceme bracted; roots thick; flowers white or yellow; corolla lobes 

 imbricate in the bud. LITHOSPERMUM (p. 191) 



CYNOGLOSSUM (Hound's Tongue) 



Coarse, hairy, perennial. Flowers in panicled racemes. Corolla with 

 conspicuous arching crests at the throat. Stamens included. Style in- 

 cluded. — (Gk. kyon = a dog, glossa = the tongue ; from a resemblance in 

 the leaf.) 



A. Lower leaves ovate to subcordate; upper leaves wing-petioled; calyx segments 



ovate; corolla tube hardly exceeding its lobes. W. C. C. grande 



AA. Lower leaves spatula te; upper leaves sessile or partly clasping; calyx segments 



lanceolate; corolla tube 2-3 times as long as its lobes. U. C. C. occldentale 



ERITRICHIUM 



Leaves 2 cm. or less long. Flowers blue. Appendages almost closing 

 the corolla-throat. Stamens included. Border of nutlets acute. — (Gk. 

 erion = wool; thrix = hair; referring to the hairy herbage.) 



A. Basal leaves linear-spatulate; corolla 8-10 mm. wide; nutlets wingless, the sharp 



edge entire; plant with short silky hairs. C. E. howardi 



AA. Basal leaves lanceolate to ovate; corolla 4-6 mm. wide; nutlets winged, the 



I wing toothed or lobed; plant with long shaggy hairs. C. E. E. argenteum 



PLAGIOBOTHRYS (Pop-corn Flower) 



Flowers in circinate racemes. Corolla-throat conspicuously appendaged. 

 Nutlets 3-angled, incurved. — (Gk. plagios = oblique, bothros = a trench ; 

 probably referring to the scar on the nutlet.) 



A. Plant pubescent to tomentose, not hispid. 

 B. Stem simple up to the racemes. 

 C. Basal leaves oblanceolate; calyx cleft almost to base. U. P. campestre 



