BORAGINACEAE. 
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Nutlets obliquely attached ; flowers mostly bractless; corolla blue or white 
with funnelform throat. 8. Mertensia. 
Nutlets attached by the very base. 
Corolla salverform or funnelform; its lobes rounded and spreading. 
Racemes not bracted; corolla in ours blue; its lobes convolute in bud. 
9. Myosotis. 
Racemes bracted ; corolla yellow or yellowish ; its lobes imbricated in 
bud. 10. Lithospermum. 
Corolla tubular; its lobes erect, acute, otherwise as in Lithospermum. 
11. Onosmodium. 
1. LAPPULA Moench. Stick-seed. 
Inflorescence leafy-bracted only at the base; bracts minute above; gymnobase 
short-pyramidal; scar of the nutlets ovate or triangular; perennials or 
biennials. 
Corolla 1.5-6 mm. wide, blue; stem very leafy. 
Marginal prickles free to the base or nearly so. 
Corolla 1.5-3 mm. wide. 1. L. Besseyi. 
Corolla 4-6 mm. wide (leaves firmer). 2. L. doribunda. 
Marginal prickles united for Vz-Yz their length into a distinct wing. 
Stem-leaves linear-lanceolate, densely strigose. 3. L. angustata. 
Stem-leaves oblong-lanceolate, hispidulous; the hairs with papillose bases. 
4. L. scaberrima. 
Corolla 6-8 mm. wide, blue with white center ; stem very leafy at the base. 
5. L. gracilenta. 
Inflorescence leafy; the floral leaves, although smaller, resembling those of the 
stem; annuals. 
The annular margin connecting the bases of the prickles inconspicuous in all 
four nutlets. 
Calyx-lobes more than twice as long as the fruit, reflexed-spreading; floral 
leaves broadly lanceolate. 6. L. calycosa. 
Calyx-lobes less than twice as long as the fruit; floral leaves linear or linear- 
lanceolate. 7. L. occidentalis. 
The annular margin connecting the bases of the prickles at least in three of 
the nutlets broadened and forming a cup. 
Plant diffusely branched, at flowering time without basal rosette. 
8 . L. cupulata. 
Plant at flowering time with a basal rosette of spatulate leaves; stems 
more simple. 9. L. collina. 
1. Lappula Besseyi Rydb. In wooded canons of Colorado.—Alt. about 
8000 ft.—Mouth of Cheyenne Canon near Pike’s Peak. 
2. Lappula floribunda (Lehm.) Greene. ( Echinospermum Horibundum 
Lehm.) On hillsides and among bushes from Man. and Alb. to N. M. and 
Calif.—Alt. 5000-10,000 ft.—Boulder Canon; New Castle; Twin Lakes; 
La Veta; Gunnison; Valley Spur; Pagosa Springs; near Dix Post Office; 
Wahatoya Creek; mountains, Larimer Co.; Four-mile Hill, Routt Co.; North 
Poudre; Empire; Poudre Canon ; Como. 
3. Lappula angustata Rydb. Foot-hills of Colo, and Wyo.—Alt. 5000-6000 
ft.—La Veta; foot-hills and plains near Boulder; Rist Canon; Hahn’s Peak. 
4. Lappula scaberrima Piper. In sandy soil from Wyo. and Neb. to Colo. 
—Cripple Creek; Idaho Springs. 
5. Lappula gracilenta Eastw. In canons of southwestern Colo.—Navajo 
Canon; Mesa Verde. 
6. Lappula calycosa Rydb. In waste places and fields in Colo.—Alt. 5000- 
6000 ft.—Pike’s Peak; Mancos; New Windsor, Weld Co.; Walsenburg; 
Glenwood Springs; Ft. Collins. 
