262 Rydberg: Notes on Fabaceae— II 



being H. humilis. Later* he changed the name to A. decumbens 

 convallarius . Even at that time, however, he had a misconcep- 

 tion of certain species; for, on a later page of the same article, 

 he changed Astragalus junceus (Nutt.) Gray to A. diver sifolins 

 roborum and labeled with this name specimens belonging to 

 H. campestris. 



Macbridef united A. campestris and A. junceus, regarding 

 "the relative length of the calyx-lobes and the presence or 

 absence of black pubescence" as "trivial variations" and of 

 "no practical taxonomic value." Perhaps they are so and per- 

 haps H. campestris, H. junceus and H. junciformis should be 

 only one species, but he has used one of these characters, the 

 longer calyx-lobes, together with the presence of lateral leaflets, 

 as a character to separate his A . campestris diver sijolius (Gray) 

 Macbr. from the typical form of the species. These characters 

 are just those that characterize the type. 



Only two of the specimens cited by Macbride under the variety 

 diver sijolius are found in New York herbaria: the first of these 

 is Nuttall's, from the "sources of the Platte," Wyoming, which 

 represents the type collection of H. orthocarpus Nutt.; and the 

 second is Baker 242, from Cedar Edge, Colorado, which matches 

 the type of H. campestris in every respect. Evidently Macbride 

 has misinterpreted A. diver sijolius A. Gray (see below). Of 

 the specimens in the Gray Herbarium, Canby 84, from Helena, 

 Montana, is H. junceus; so also are Watson Q2 and Nelson & 

 Macbride 12Q2, both from Idaho. The rest represent the typical 

 H. campestris, except Macbride & Payson 3183, in flower only, 

 from Clyde, Idaho, which may be H. orthocarpus. In the 

 herbaria of the New York Botanical Garden and Columbia 

 University, the following specimens of H. campestris are found : — 



Wyoming: Nuttall. 



Utah: Glenwood, Ward 22J; Hooper, Leonard q8; Tropic, 

 Jones 5312k; Mandan, Muljord 118; Salt Lake City, Garrett 

 Q84; Pavant Mountains, Eggleston 1014Q. 



Colorado: Cedar Edge, Baker 242; Como, Crandall; Middle 

 Park, Patterson; Glenwood Springs, Osterhout; White River, 

 Mrs. Dun. 



* Contr. W. Bot. 10: 58. 1902. 



f Contr. Gray Herb. II. 65: 35. 1922. 



