I f_>G ADDITIONS AND CORRECTIONS 



Paj 



1*17 In the key of Tium, third line, omit the word "glabrous." 



ins I'mler (ho .synonyms of T. scopulorum for A. rarus read A. rasus. 

 ins I'mlrr T. Kitsbyi, fifth and sixth lines, omit the words "about 2 cm. 

 loi 



,"().") After X. i<intcnsis insert: 



lla. Xylophacos lenophyllus Rydb. sp. nov. Perennial with a 

 \\ oiidy caudex, cespitose; stems decumbent at the base, mostly less than 

 1 dm. long, canescent-strigose; stipules scarious, deltoid, acuminate; 

 leaves S-10 cm. long; leaflets 15-31, oval or obovate, loosely strigose-canes- 

 ivnt, densely so beneath, less so above, 5-10 mm. long; peduncles about 

 1 dm. long, overtopping the leaves; racemes 3-5 cm. long, 3-12-flowered; 

 calyx white-hairy, about 8 mm. long, 3 mm. wide, the lobes lance-deltoid, 

 ].5-2 mm. long; corolla purple, 15-20 mm. long; pod slightly curved up- 

 wards, 22-25 mm. long, 8 mm. broad, canescent with short, curved hairs, 

 abruptly contracted at the base. Type collected in the vicinity of Flag- 

 staff, Ariz., MacDougal 27. ? Astragalus amphioxus brachylobus A. Gray. 

 Ariz. (Pinto Canon) Utah. 



509 In the key, for 1. H. ligulatus read 1. H. lingulatus. 



509 In 11. H. grallator, the pod is short-stipitate. 



510 In the key, in the line above 36. H. hylophilus, instead of "leaves" 

 readu leaflets." 



514 Under H. decurrens add the synonym: Astragalus Rydbcrgii Macbr. 



514 Under H. paucijugus add the synonym: Astragalus Garrettii Macbr. 



514 Under H. pumilus add the synonym: Astragalus Carltonii Macbr. 



514 Before H. Episcopus insert: 



37a. Homalobus canovirens Rydberg, sp. nov. A perennial, with 

 a cespitose caudex; stems 2-3 dm. high, branched, strigose, grayish-green, 

 striate; stipules ovate, 2 mm. long, distinct; leaves 3-5 cm. long; leaflets 

 linear or oblong, 5-10 mm. long, 1-2 mm. wide, grayish-strigose, mostly 

 obtuse; racemes rather lax, including the peduncles 1-1.5 dm. long; 

 bracts subulate, 1-2 mm. long; calyx strigose with black hairs, the tube 

 3-4 mm. long, the teeth subulate, 1 mm. long; pod glabrous, the stipe about 

 7 mm. long, the body oblong, about 2 cm. long and 5 mm. wide, acute 

 at each end; seeds dark olive-brown, rhombic-reniform, 3 mm. long, 

 fully 2 mm. broad. Mountain slopes: Utah, La Sal Mountains, Rydberg 

 & Garrett 8536. 



516 In the key, before 6. K. tegetaria, instead of the words, "Flower-clusters 

 on peduncles much exceeding the leaves" read "Flower-clusters at least 

 equaling the leaves. " 



In description of Ondbrychis, first line of the page, between the words 

 "stamens" and "partly" insert "diadelphous or". 

 529 After L. arizonicus insert: 



22. Lathyrus silvestris L. Stem 1-2 m. high, wing-margined, glabrous; 



leaflets of a single pair, 8-15 cm. long, 8-20 mm. wide, glabrous, linear 



or lance-linear, with 3 stronger ribs, acute; peduncles 5-15 cm. long, 



76 llowored; corolla purplish, 2-2.5 cm. long, Roadsides and along 



ditches: Utah; escaped from cultivation; native of Europe. Jl-Au. 



Lathyrus latifolius L. Similar to the preceding; leaflets 1 

 pair, oblong or lance-oblong, 5-10 cm. long, 2-4 cm. wide, usually 5- 

 Roadsides and along ditches: D. C. Utah Ariz.; escaped 

 from cultivation; native of Europe. Je-S. 



Under Tribulus insert the common name CALTROP, and under Kall- 

 stroemia the common name FALSE CALTROP would be better. 



After C. glyptosperma insert: 



lla. Chamaesyce aequata Lunell. Stem prostrate, much branched, 

 glabrous, terete, red; leaves obovate or broadly oblong, unequal at the 



