580 BORAGINACEAE 



VII. MOHAVENSES. 



Corolla conspicuous, limb 4-7 mm. wide; style distinctly surpassing the nutlets. 33. C. mohavensis. 



Corolla inconspicuous, limb about 1 mm. wide; style included or about equaling the nutlets. 



34. C. Watsonii. 



VIII. Ghaciles, 

 A single species. 35. C. gracilis. 



IX. Ramulosissimae. 

 A single species. 36. C. Fendleri. 



X. Leiocarpae. 



Hairs on upper part of calyx-lobes spreading or ascending. 

 Styles about two-thirds to nearly as high as nutlets. 



Spikes bracteate, dense, mostly 8-15 mm. long; nutlets usually 4, rarely reduced to 1 by abortion. 



37. C. leiocarpa. 

 Spikes naked, or the lowest flowers sometimes bracteate. 



Nutlets 1-4, low-rounded on the back, flattened on the ventral side, not circular in cross section. 

 Fruiting calyx 2-4 mm. long, moderately white-bristly. 38. C. Clevelandii. 



Fruiting calyx 6-10 mm. long, conspicuously tawny-bristly; spikes stiffly erect, 5-15 cm. long. 



39. C. Gandcri. 



Nutlets 1, lanceolate, rounded on both sides and circular in cross section. 



40. C. hispidula. 



Styles less than half the length of nutlets; fruiting calyx 1.5-2 mm. long; nutlet 1, lanceolate-attenuate 

 or rostellate. . 41. C. microstachys. 



Hairs on the upper part of calyx-lobes decidedly reflexed. 42. C. nemaclada. 



XI. Flaccidae. 



Nutlets with an open areole at base of groove; style about two-thirds the height of nutlets; plants often coarse. 



43. C. rostellata. 



Nutlets with closed groove; styles less than one-half as high as nutlets; very slender plants. 



Nutlets rounded dorsally and on the margins, only slightly compressed, ovate-lanceolate and rostrate- 

 acuminate. 44. C. flaccida. 



Nutlets flattened on both surfaces and angled on the margins, ovate, acute or short-acuminate. 



45. C. spariiflora. 



XII. AFFINE5. 



Nutlets 4; style at least two-thirds the height of nutlets; plants erect; flowers in spikes 2-8 cm. long. 



46. C. affinis. 



Nutlets 1; style less than one-half the height of nutlets; plants spreading; flowers in axillary glomerules. 



47. C. glomeriftora. 



1. Cryptantha holoptera (A. Gray) J. F. Macbride. Winged Cryptantha. 



Fig. 4265. 



Eritrickiiim holopterum A. Gray, Proc. Amer. Acad. 12: 81. 1876. 



Krynitskia holoptera A. Gray, op. cit. 20:276. 1885. 



Cryptantha holoptera J. F. Macbride, Contr. Gray Herb. No. 48: 48. 1916. 



Stems erect, 1-6 dm. high, branches usually many along the main stem, ascending, spreading- 

 hispid and strigose. Leaves linear-lanceolate, the upper sessile, the lower petioled, 2.5-6 cm. 

 long, 2-8 or rarely 10 mm. wide, acute or obtuse, conspicuously pustulate and hispid below, 

 somewhat less so above ; racemes geminate, naked or with a few bracts below, mostly 4-S cm. 

 long, sometimes longer ; corolla 2 mm. broad, the lobes ascending ; fruiting calyx oblong-ovoid, 

 2.5-3.5 mm. long, the lobes lanceolate, somewhat connivent, hispid on the thickened midrib, 

 strigose on the margins; nutlets 4, similar, 1.5-2.5 mm. long, oblong-ovoid or triangular-ovate, 

 the dorsal side dark with pale tubercles, margins narrowly to broadly winged, groove open or 

 closed above, dilated into an areole at base; style distinctly surpassing the nutlets but shorter 

 than the calyx-lobes. 



Gravelly or rocky slopes and ridges. Lower Sonoran Zone; Inyo County south to southern border of 

 Imperial County, California, east to Mohave and Yuma Counties, Arizona. Type locality: Ehrenberg, 

 Arizona. Feb.-April. 



2. Cryptantha racemosa (S. Wats.) Greene. Bushy Cryptantha. Fig. 4266. 



Eritrichiitm racemosum S. Wats, in A. Gray, Proc. Amer. Acad. 17: 226. 1882. 



Krynitzkia ramosissima A. Gray, op. cit. 20: 277. 1885. 



Cryptantha suffruticosa Piper, Proc. Biol. Soc. Wash. 32:42. 1919. 



Cryptantha racemosa var. lignosa I. M. Johnston, Univ. Calif. Pub. Bot. 7: 445. 1922. 



Johnstonella racemosa Brand, Rep. Spec. Nov. 21:249. 1925. 



Flowering as an annual but commonly persisting several years and the stem becoming 

 distinctly woody below, mostly bushy-branched, forming clumps 3-7 dm. high, ultimate branch- 

 lets very slender, strigose, epidermis at length exfoliating, leaving the older woody stems glabrous 

 and brown. Leaves linear-subulate to narrowly oblanceolate, 0.5-4 cm. long; racemes slender, 

 loosely flowered, terminating the spreading or ascending paniculately disposed branchlets, 2-4 

 cm. long, minutely bracteate ; pedicels slender, often recurved ; fruiting calyx 2 rnm. high ; lobes 

 narrowly linear-lanceolate, slightly keeled on the back, armed with stifif spreading bristles and 

 strigose ; corolla slightly exserted, limb about 1 mm. broad ; nutlets 4, triangular-ovoid, acute at 

 apex and slightly curved outward, groove open or closed above broadening below into a tri- 

 angular areola, heteromorphous, the odd nutlet 1-2 mm. long, finely muricate or tuberculate, light 



