ADDITIONS AND CORRECTIONS 1131 



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Attachment and scar of the nutlets not exactly basal, either oblique or supra- 

 basal. 



Nutlets lanceoloid. 6. A. lonchocarpa. 



Nutlets ovoid. 



Nutlets armed with hyaline bristles or at least with short glochidia. 

 Glochidia very short, sub-sessile. 7. A. Inspidula. 



Glochidia longer, with an evident hyaline stalk. 8. A. ramosa. 

 Nutlets unarmed. 



Nutlets glossy, not muriculate. 



Nutlets smoth. 9. A. nitens. 



Nutlets rugose. 10. A. cognala. 



Nutlets dull, muriculate. 11. A. californica. 



725 1. Allocarya Nelsonii Greene. Omit Ida, from distribution, which 

 refers to the next. Add: Colo. 



2. Allocarya oricola Piper. Annual, stems 1-2.5 dm. high, strigillose; 

 leaves linear-oblanceolate, glabrous or nearly so above, strigillose beneath, 

 1-2 cm. long; racemes secund, only a few of the flowers with bracts; 

 corolla minute; nutlets lanceolate, 2-5 mm. long, keeled on the back only 

 near the tip, bearing slender bristles, barbed at the tip, the ventral side 

 keeled, granular and bristly. Dry lake beds: Ida; Jl. 



3. Allocarya asperula Piper. Annual; stems erect or ascending? 

 1-3 dm. high; leaves linear, glabrous above, strigillose beneath, 1-2 cm. 

 long; raceme loose; most of the flowers bracted; corolla minute; nutlets 

 2.2-2.5 mm. long, compressed above the middle, the bristles retrorsely 

 barbed; scars margined with a flange. Saline soil: Sask. Wyo. Nev. 

 Je-Jl. 



4. Allocarya Wilcoxii Piper. Annual; succulent; stem 8-15 cm. long, 

 sparingly strigulose; leaves linear-oblanceolate, glabrous above, pulvinate- 

 setulose beneath, 1-2 cm. long; raceme moderately loose, subsecund, 

 some of the flowers bracted; nutlets ovoid, 3-gonous, 2 mm. long, rugulose 

 and tuberculate; bristles single, barbed at the tip; scar margined with a 

 flange. Dry soil. Ida. 



5. Allocarya lonchocarpa Piper. Annual; stem branched from the 

 base, ascending, 1-2 dm. long, sparsely strigillose; leaves linear-oblanceolate, 

 nearly glabrous above, strigillose beneath, 1-3 cm. long; racemes loose, 

 lax, most of the flowers bracted; nutlets lanceoloid, 2.2 mm. long, the back 

 rather flat, keeled at the apex, rugulose and coarsely granulate; scar 

 lanceolate. Pools: S. D. Je. 



6. Allocarya hispidula Greene. See page 725. 



7. Allocarya ramosa Piper. Annual; stem branched near the base, 

 1-3 dm. long, strigillose; leaves linear; glabrous or nearly so above, stri- 

 gillose beneath, 1-5 crn. long; racemes slender, loose, some of the flowers 

 bracted; calyx setulose; corolla 2 mm. broad; nutlets dull brown, ovoid; 



2 mm. long, densely granular and with fine cross-ridges; scar pyriform. 

 Grassy lowlands and slopes: Wash. Ida. Utah. Ore. Je-Au. 



8. Allocarya nitens Greene. Annual; stem prostrate, branched, 



3 dm. long or more; leaves strigulose-hispid; racemes bracted throughout; 

 nutlets ovate, acuminate, broadly keeled on the back, smooth and shining. 

 Dry lake beds: Utah Nev. My-Jl. 



9. Allocarya cognata Greene. Add to description: most of the 

 flowers bracted; nutlets broadly ovate, irregularly wrinkled on the back. 



10. Allocarya californica (F. & M.) Greene. A. scopulorum Greene. 

 See page 725. 



725 Piper referred Allocarya Hendersonii to the genus Cryptantha. 



732 In the description of M. ciliata, 5th line, for " 12-15 cm. long" read 

 "12-15 mm. long." 



In that of M. pulchella, first line, for " 1-2 cm. high" read " 1-2 dm. high. ' 

 734 After 29. M. media insert: 



29a. Mertensia Clokeyi Osterhout, Stem slender, up to 4 dm. high, 

 glabrous or nearly so; lower leaves linear, 3-4 cm. long, 3-4 mm. wide, 



