428 THE AMERICAN MIDLAND NATURALIST 
Minnewaukan, Pleasant Lake, Minot. 
CTENOPHYLLUM Rydberg. FI. of Colorado. 196. (1906). 
643. Ctenophyllum pectinatum (Hook.) Rydb., l. c. 207. 
Phaca pectinata Hook. Fl. Bor. Am. I: 141, pl. 54. (1830). 
Astragalus pectinatus Dougl.; Hook. 1. c. 142. (1830). 
Minot; Williams Co. (W. B. Bell). 
DIHOLCOS Rydb. FI. of Colorado 196. (1906). 
644. Diholcos bisulcatus (Hooker.) Rydb., 1. ¢. 207. 
Phaca bisulcata Hook. Fl. Bor. Am. I: 145: (1833). 
Astragalus bisulcatus (Hook.) A. Gray, Pac. R. R. Rep. 12: 
pant 2242, pli1.\(1860). 
Leeds, Oberon, Brinsmade; Kulm (Brenckle). 
HOMALOBUS Nutt.; T&G. Fl. N::Amo 1; 252. (rage 
645. Homalobus tenellus (Pursh) Britt. Tl. Fl. Vol. IT: 
305. (1897). 
Astragalus tenellus Pursh, Fl. Am. Sept. 473. (1814). 
Astragalus multiflorus A. Gray, Proc. Am. Acad. 6: 226. (1864). 
Butte, Devils Lale. 
646. Homalobus flexuosus (Dougl.) Rydb. Fl. of Colorado, 
LG ue DO. 
Astragalus flexuosus Dougl.: Hook. Fl. Bor. Am. 1: 141 
(1833). 
Phaca flexuosa Hook. Fl. Bor. Am. I: 141. (1833). 
Leeds, York, Butte; Morton Co. (W. B. Bell’s no. 158). 
CYSTOPORA (xvotis bladder, O7tpa., fruit) Lunell, 
nom. nov. 
Phaca Diosc.=Cicer Lens Linn. Aphaca (Apaxn) = Lathyrus 
Aphaca Linn. 
Phaca Royen, Fl. Lugd. 390. (1740). Linn. Gen. 370. (1742), 
Gen. 334. (1754). 
Bubani uses Astragalina to replace Astragalus—Astragaloides 
Tour., I. R. H. 399& 223. (1700), as also Boerhave. Both of these 
names not acceptable as built on Astragalus. 
647. Cystopora lotiflora (Hook.) Lunell. 
Astragalus lotiflorus Hook. Fl. Bor. Am. I: 152. (1833). 
Phaca lotiflora (Hook.) T & G. Fl. N. Am. I: 349. (1838). 
Pleasant Lake. 
648. Cystopora elatiocarpa. (Sheldon) Lunell. 
Astragalus elatio carpus Sheldon, Minn. Bot. Stud. 9:20. (1894). 
Phaca elatiocarpa (Sheldon) Rydb. Fl. of Colorado, |. c. 211. 
