WOOTON AND STANDLEY FLORA OF NEW MEXICO. 539 



Nutlets attached from the base 

 to or above the middle. 

 Calyx lobes strongly nerved; 



plants mostly bristly- ^ 



hispid ; roots without 



coloring matter 11. Cryptanthe (p. 546). 



Calyx lobes nerveless or 



faintly nerved; plants 



not bristly-hispid ; roots 



with purplish coloring 



matter 8. Eremocarya (p. 544). 



1. CYNOGLOSSUM L. Hound's-tongue. 



Coarse biennial herb, 20 to 60 cm. high, with rather large flat leaves and with reddish 

 purple flowers in terminal racemes; stamens included ; ovary of 4 nearly distinct lobes; 

 nutlets flat or convex, covered with short barbed prickles. 



1. Cynoglossum ofl&cinale L. Sp. PI. 134. 1753. 

 Type locality: "Habitat in Europae ruderatis." 

 New Mexico: Raton Mountains. 

 A common weed in many parts of the United States, introduced from Europe. 



2. LAPPXJLA Moench. Stickseed. 



Hispid or canescent annual, biennial, or perennial herbs, 1 meter high or less, with 

 alternate leaves and small white or blue flowers in spikes or racemes; calyx 5-lobed; 

 corolla salverform or funnelform, with a short tube; stamens included; ovary 4-lobed; 

 fruit burlike, of 4 nutlets armed on the back or margins with barbed prickles. 



KEY TO THE SPECIES. 



Inflorescence leafy throughout, the floral leaves merely smaller 

 than those of the stem; annuals. 

 Annular margin connecting the bases of the prickles incon- 

 spicuous in all 4 nutlets 1. L. occidentalis. 



Annular margin connecting the bases of the prickles, in at 



least 3 of the nutlets, broadened and forming a cup 2. L. texana. 



Inflorescence leafy-bracted only at the base, the bracts minute 

 above; biennials or perennials. 

 Prickles of the fruit united for about half their length. 



Flowers white; cauline leaves narrowly oblong, sessile 



or nearly so; sepals obtuse 3. L. leucantha. 



Flowers blue; cauline leaves lanceolate or lance-ovate, 



petiolate; sepals acute 4. L. ursina. 



Prickles distinct to the base. 



Stems hirsute; margins of the leaves long-ciliate 5. L. hirsuta. 



Stems not hirsute; leaves not long-ciliate. 



Plants densely grayish-strigose throughout, the bases 

 of the hairs white and much enlarged; inflores- 

 cence loose, few-flowered 6. L. grisea. 



Plants not densely grayish-strigose, the hairs short and 

 comparatively soft; bases of the hairs small 

 and inconspicuous; inflorescence dense and ' . 



many-flowered. 

 Cauline lea i/es linear-oblong, sessile or nearly so.. 7. L.florihunda. 

 Caulineleaveslanceolate, conspicuously petiolate. 8. L. pinetorum. 



