02 



Opuntia fii,,ipendui,a K. ' 



"Glauca; radicibusnodoso-incrassatis; articulis minoribus orbiculatis 

 seu obovatis seu oblanceolatis tenuibus; pulvillis ap'proximatis setas vires- 

 eenti-flavas graciles numerosas gerentibus armatis vel inermibus; aculeis, 

 si adsunt, 1-2 elongatis subang'ulatis cum-1-2 minoribus, omnibus albidis; 

 fioris purpurascentis ovario gracili ; stigmatibus 5; seminibus minoribus 

 tumidis. Alluvial bottoms of the Rio Grande near El Paso, and eastward 

 on the Pecos: flowers May and June. The long knotted roots, the small 

 bluish joints, with the very small leaves and very long bristles, together 

 with the purple flower, and thick very narrowly margined seeds, distin- 

 guish this species from all others. Plant 6-12 inches high; joints 1^-3 

 inches long, 1-2 wide; pulvilli 4-6 lines apart; lower spines 1-2 inches 

 long. Flower 2V0 inches in diameter. Seed hardly 2 lines in diameter."— 

 E. Syn. 294 (38). 



Opuntia Emoryi E. 



"Articulis cylinclricis basi clavatis glaucis; tuberculis oblongo-lin- 

 earibus elongatis; setis paucis; aculeis plurimis rufis, interioribus 5-9 va- 

 lidioribus triangulatis, compressis, exterioribus 10-20 pluriseriatis undique 

 radiantibus; floribus flavis extus rubellis; bacca pulvillas 35-50 setosissi- 

 mos inferiores aculeolatos gerentibus; seminibus valde inaequalibus irreg- 

 ularibus. Arid soil, from El Paso through Sonora to the desert of the 

 Colorodo: flowers August and September. The stoutest species of this 

 section. Joints 4-6 inches long, curved, 1-1K inches in diameter; tuber- 

 cles i-i}4, inches long; longest spines i}4~2 1 ,4 inches long, %-i line wide; 

 the exterior spines gradually smaller, and less angular. Fruit 2-2 l / 2 inch- 

 es long, partly armed with spines 4-8 lines long. Seeds from 2%-$% 

 lines in diameter. Cotyledons oblique or accumbent." — E, Sjm 303 (47). 



CERKUS GrcuTTii Katharine Brandegee, Zoe 5:3 (13 Je 1900). 



"Sterns erect, branching, bright green, reaching a height of 3 m. 

 and a diameter of 15 cm. with hard woody center; ribs 14-18, about 1 cm. 

 high; areolse round, about 6 mm. in diameter and about half that distance 

 apart, densely covered with short, light gray wool; spines all slender, 

 spreading, yellowish brown, irregularly 3-seriate; radials e 12-20, about 12 

 mm. long, deficient above; intermediates about 10, % to more than twice 

 longer, less spreading, one of the upper spines of this row usually stouter 

 and darker, porrect, often reaching a length of 7 cm.; centrals about 5, por- 

 rect-spreading a little longer than the intermediates; flowers greenish 

 brown, darker outside, diurnal, about 4 cm. entire length; ' petals short- 

 apiculate; ovary densely covered with short scales, almost completely con- 

 cealed by thick, rounded tufts of yellowish wool, in which are imbedded 

 dark brown bristles 4-6 mm. long; stamens lining the upper half of the 

 tube; style tips acute, fruit not known " Ivower California, 



