598 BORAGINACEAE 



22. OREOCARYA Greene, Pittonia 1 : 57. 1887. 

 Stout perennial herbs, canescent or pilose-hispid with the leaves mostly basal. Inflo- 

 rescence leafy-bracteate thyrsoid or racemose-paniculate. Flowers in slender pedicels, 

 persistent. Calyx 5-parted to the base, segments lanceolate. Corolla white or cream- 

 colored with prominent often yellow crests. Nutlets smooth and polished or tuberculate 

 or rugose and dull, the margins acute or sometimes very narrowly winged ; groove usually 

 closed, divaricate at base. [Name Greek, meaning mountain, because of the habitat, and 

 nutlet.] 



A genus of about 45 species inhabiting western North America. Type species, Cynoglossum glomeratum Pursh. 



Nutlets smooth and shining on the dorsal surface. 



Corolla-tube 3-4 mm. long, barely as long as calyx in anthesis, white. 1. O. ahortiva. 



Corolla-tube 8-12 mm. long, distinctly longer than calyx in anthesis. 



Corolla yellow; nutlets broadly ovate in outline, distinctly wing-margined. 2. O. confcrtiflora. 



Corolla white; nutlets lanceolate in outline, the margins acute not winged. 3. O. leticophaea. 



Nutlets more or less roughened or wrinkled on the dorsal surface. 



Corolla-tube about equaling or shorter than the calyx in anthesis. 



Inner surface of nutlets smooth or nearly smooth; margin of scar not elevated. 



Scar of nutlet narrowly subulate, but open at base. 



Nutlets with conspicuous transverse rugae on upper surface. 



Calyx 5-7 mm. long in fruit. 4. O. subretusa. 



Calyx 13-15 mm. long in fruit. 5. O. crymophila. 



Nutlets with distinct tubercles but no conspicuous transverse rugae on upper surface. 



' 6. O. nubigena. 



Scar of nutlet broader and distinctly cuneate at base. 7. O. Thompsonii. 



Inner surface of nutlets conspicuously rugose or tuberculate. 



Scar of nutlet open and cuneate toward the base, only narrowly so in O. hutnilis. 

 Margin around scar somewhat elevated. 



Cymules elongated and inflorescence broad. 



Calyx-lobes 10-12 mm. long in fruit; nutlets 4.5 mm. long, prominently carinate 



on the dorsal side. 8. O. virginensis. 



Calyx-lobes 5-7 mm. long in fruit; nutlets 2.5-3 mm. long, with only an indistinct 

 central ridge toward the apex. 9. O. Hoffmannii. 



Cymules short and inflorescence narrow; nutlets without or with only an indistinct 

 central ridge on the dorsal side. 10. O. tutnulosa. 



Margin around the scar not at all elevated; scar with only narrow opening at base. 



11. O. hutnilis. 



Scar of nutlet closed and linear or nearly so, without conspicuous triangular opening toward the 

 base. 



Leaves uniformly strigose on the upper surface and without pustules. 



12. O. propria. 

 Leaves with strigose hairs, also with marginal setae pustulate at base. 



Nutlets dark brown and glossy, tuberculate, not rugose but with an occasional pair of 

 tubercles connected by a low vein-like ridge. 13. O. Sheldonii. 



Nutlets more or less rugose, the ridges and tubercles pallid. (See also O. humilis.) 



Nutlets 3-4 mm. long; stems slender. 14. O. spiculifera. 



Nutlets 4-5 mm. long; dorsal ridges conspicuously rugose. 15. O. cclosioides. 



Corolla-tube distinctly longer than the calyx in anthesis; scar of nutlet conspicuously open and its margin 



distinctly elevated. 16. O. flavoculata. 



1. Oreocarya abortiva Greene. Prostrate Oreocarya. Fig. 4312. 



Oreocarya abortiva Greene, Pittonia 3: 114. 1896. 



Krynitzkia multicaulis var. abortiva M. E. Jones, Contr. West. Bot. No. 13: 5. 1910. 

 Oreocarya suffruticosa var. abortiva J. F. Macbride, Proc. Amer. Acad. 51: 547. 1916. 

 Cryptantha Jamcsii var. abortiva Payson, Ann. Mo. Bot. Card. 14: 250. 1927. 

 Hctnisphaerocarya abortiva Brand, Rep. Spec. Nov. 24: 61. 1927. 



Stems several from the root crown, decumbent or prostrate, 5-15 cm. long, herbage silver- 

 gray throughout with a fine strigulose pubescence and with few hirsute bristles in the in- 

 florescence especially on the margins of the bracts. Leaves mostly tufted near the base, 5-10 

 cm. long, oblanceolate, densely strigulose and with scattered appressed bristles pustulate at 

 base; raceme short leafy-bracteate, usually in a thyrsoid panicle 1.5-3 cm. long; calyx-lobes 

 ovate-lanceolate, 3^ mm. long, densely strigose and setose, the tube very short ; corolla white, 

 3-4 mm. long, the limb about 3 mm. broad; nutlets 1-4, narrowly ovoid, 2-2.5 rnm. long, 

 curved on the dorsal side, smooth and glossy, ventral side strongly keeled uath sloping sides, 

 the keel grooved about two-thirds the way up and forked at base; scar linear, situated in the 

 groove. 



Gravelly flats, mountains, mostly Canadian Zone; Mono and Inyo Counties and to the San Bernardino 

 Mountains, California, east to southern Nevada. Type locality: Bear Valley, San Bernardino Mountains, 

 California. May-Aug. 



2. Oreocarya confcrtiflora Greene. Mojave Oreocarya. Fig. 4313. 



Oreocarya confcrtiflora Greene, Pittonia 3: 112. 1896. 

 Oreocarya leucophaea var. confcrtiflora Parish, Erythea 7: 95. 1899. 

 Oreocarya Ititea Greene ex Fedde, Rep. Spec. Nov. 19: 72. 1923. 

 Cryptantha confcrtiflora Payson, Ann. Mo. Bot. Gard. 14: 256. 1927. 



Perennial with a stout woody root and woody cespitose caudex, the flowering stems simple. 



