718 BORAGINACEAE 



Basalleaves with long loose pubescence; dorsal surface of the nutlets smooth; coroUa 



5-b mm. wide. o p Plnnnntum 



Dorsal surface of the nutlets with a toothed border; coroUa 4-6 mm. wid4. """^'""'"• 



3. E. argenteum. 



1. E, Howard! (A. Gray) Rydb. Floral branches 1-10 cm. long, canescent- 

 strigose; leaves linear-oblanceolate, canescent or yellowish strigose; coroUa dark 

 blue; nutlets broadly obconic, obUque, 2 mm. long and broad; dorsal surface 

 oval, almost flat. Cynoglossum and Omphalodes Howardii A. Gray. Dry hills: 

 Mont.— Wyo.— Wash. Suhmont. My~Jl. 



2. E. elongatum (Rydb.) Wight. Floral branches 1-10 cm. long; leaves 

 01 the caudex closely overlapping, 5-8 mm. long, oblong or oblanceolate, those 

 r li ui °^'^^"?^ branches Mnear or linear-oblong, loosely silky-villous; corolla 

 light blue; nutlets about 2 mm. long, obUque; dorsal surface ovate, smooth and 

 shinmg. E. arehmdes elongatum Rydb. Hills and mountains: Mont.— N.M. 

 —Ore. Mont.— Alp. Je-Jl. 



3. E. argenteum Wight. Floral branches 1-5 cm. high, loosely silky; 

 leaves cl the caudex closely overlapping, oblanceolate or oblong, 5-10 mm. long; 

 those ot the flowermg branches Mnear-lanceolate, silky villous; corolla bright 



blue, rare IV wh if A ^L-fi Tv.rr. k^^„j. — ti_x_ .i i r. ' ^•' -m '■. ■ i ■ ^ 



blue, rarely white, 4^ mm. broad; nutlets about 2 mm. long. Entrichium nanum 

 arehoides A. Gray, not Herder. Omphahdes nana aretioides A. Gray. Oreo- 

 caryapulvtnata A. Nels., white-flowered form. High mountains: Colo.— Utah 



(?Wyo.) Jl-Au. 



7. GREENEOCHARIS 



Depressed, spreading annuals. Leaves alternate, hnear, hirsute. Flowers 

 perfect, regular, sessile, leafy-bracted. Calyx 5-cleft, the upper portion decidu- 

 ous, the lower persistent around the fruit. Corolla salvei-shaped; tube short; 

 thioat open, naked; limb 5-lobed. Nutlets oblong-ovate, attached by a narrow 

 ^oove bifurcate at the base for nearly their whole length to a pyramidal-subulate 

 receptacle. [Piptocalyx Terr.] h <*fj 



../:r.^' ^FC"?iscissa (H. & A.) Rydb. Stem depressed, divaricately branched 



nrn JF -^ f +1' ^^^ '''^; ^}^' ^^^P'^^ ^^^"^^^ linear, 5-15 mm. long, hispid; flowers 

 crowded at the ends of the branches, leafy-bracted; coroUa white, 1 mm. long; 

 nutlets oblong-oyate, smooth or minutely scabrous. P. circumscissus Torr. 

 Desert plams:T\ash.-Wyo.-Ariz.-Calif: Son.-Plain. My. 



8. PLAGIOBOTHRYS Fisch. & Mey. Popcorn Flower. 



0.0 ''^°^' ^^*^™"ionly diffuse annuals. Leaves alternate, narrow, entire. Flow- 

 llL^f ' ^l^^^l' i° scorpioid racemes. Calyx 5-lobed, persistent. Corolla 

 salyerform, white; tube very short. Nutlets attached at or near the middle, to 

 a globular or depressed receptacle, ventrally carinate above the insertion, rugose 



«L^^^P/^J x^ ^°\*^^,*^' P^^y one or two maturing, succumbent horizontally 

 ana tardilv detached. lpfiinn<r a «o,.,,»,„i„ „* 4.u_ .- J2'- _ 



«r^^ +„ ji J V"' 1 — V , ' .""V ""c ui two maiurmg, su 



and tardily detached, leaving a caruncle at the insertion. 



lily incumbent; p 

 cruciform; basal L 



maturing, 



- ov^f^- =t«^^^^f rosulate; cauline few and "small. 1. P- ^^^^^^"?:„- 



ovate, stems leafy throughout. 2, P. anzomcus. 



4-sulcate. after the falling of the nutlets: nutlets aU 4 maturing, m- 



3. P. Kingtt' 



a;rL*^?i/;5:^^L..SA^'- branched at the base, hirsute; basal leaveB 



curvwl, 



ous, rosulate, oblanceo] 



white 1 I^"!^"k '*^''*i^' ""^Ir" ""■«"^*^' ^'^^^ yellowish or brownish hairs; c 

 tSnsvPr;p ^T^L-t^'^'^i ''''\^^^ contracted both at the base and the apex, 

 transverse wrmkles. Sandy soil: B.C.-Ida.-Calif. Son. Ai^Jc 



branche; a^opnZ^ ^?' ^"^P ^'^^^^- S^^m branched from the base, hirsute, 

 okte to li^elr 9 f °' ^f^^^^^b^^.^t ^t the base, 2-3 dm. high; basal leaves oblance- 

 ca!vx hisrSd ;:<?r?i ""-i^-?"^' ^'''f'^^' stem-leaves lanceolate or linear-lanceolate, 

 wrSled^a^d Jt h « f^ite, nearly 2 mm. wide; nutlets ovate, somewhat cross- 

 wrmMed ^d^^th ^few tubercles on the ridges. Sandy soU:' Ariz.-s Utat 



