A. microcystis Gray Proc Am. Acad. 6 220 1864 

 Fhaca microcystis (Gray) Rydberg Fl. Mont. 245 1900 

 A. debilis Walp. Rep. i 710 1842 

 miserandrus Greene Erythea 3 76 1895 is Hornii var. Bajaensis. Th 

 use of such an insulting name as this, evidently intended to reflect 

 on Sheldon, suspasses the bounds of professional courtesy and 

 common decency. 

 Missouriensis Nutt. Gen. 2 99 1818 No. 173 



Tragacantha Missouriensis (Nutt.) Kunlze Rev, 2 943 1891 

 Xylophacos Missouriensis (Nutt.) Rydberg in Small's FI. S. E. U. 

 S. 620, 1332 1903 

 Var. cuspidocarpus (Sheldon Minn. Bot. Stud. 9 149 1894 as 

 species) Jones 

 Xylophacos cuspidocarpus (Sheldon) Rydberg Torr. Bull. 40 48 1913 

 A. puniceus Ostcrhout Muhl. I 140 1906 



Shortianus var. minor Gray Proc. Am. Acad. 6 21 1 1864 

 thermalis Greene Krythea 3 76 1895 

 Moencoppensis Jones Zoe 2 12 1891 No. -203 



Mogollonicus Greene 1 orr. Bull. 8 97 1881 is Bigelovii 

 Mohavensis Watson Proc. Am. Acad. 20 361 1885 No. 93 

 MokiacensisGray Proc. Am. Acad. 13 367 1878 is lentiginosus var. 

 molli;.simus Torr. Ann. N. V. Lye. 2 178 1828 No. 191 

 Phaca villosa James Cat. 1S6 1825 

 A. simulans Cockerell Torreya 2 154 1902 

 nion'anus (Nutt.) Jones No. 16 Page 80 



Kentrophyta montana Nutt. in T. & G. Fl. N. A. i 353 1838 

 viridis 1. c. 



Wolfii Rydberg Torr. Bull. 32 665 1905 

 A. Kentrophyta Gray Proc. Phil. Acad. Sen 2 7 60 1863 



viridis (Nutt) Sheldon Minn. Bot. Stud. 9 118 1894 

 Homalobus montanus (Nutt.) Britten Fl. 2 306 1897 



Wolflfi Rydberg Torr. Bull. 31 562 1904 

 Tragacantha montana (Nutt.) Kuntze Rev. Gen. 2 941 1891 

 Phaca viridis (Nutt.) Britton Mem. Torr. Club 5 201 1894 

 Var. Coloradoensis Jones 



A. Kentrophyta var. Coloradoensis Jones Cont. 10 63 1902 

 Var. impensus (Sheldon) Jones 



A. viridis var. impensus Sheldon Minn. Bot. Stud. 9 118 1894 



Kentrophyta var. elatus Watson Bot. King 77 1871 

 Kentu)phyta impensa (Sheldon) Rydberg Torr. Bull. 32 665 1905 

 Var. rotundus Jones 



.•\. tegetaiius var. rotundus Jones Cont. 7 650 1895 

 Kentrophyta var. rotundus Jones Cont. 9 42 1898 

 Var. tegetaiius (Watson) Jones 



A. tegelarius Watson Bot. King 76 1 871 



Var. implexus Canby in Porter & Coulter Fl. Col. App. 1874 

 aculeatus Nelson Torr. Bull. 26 10 1899 

 Homalobus aculeatus (Nelson) Rydberg Fl. Mont. 246 1900 



tegetarius (Watson) Rydberg Torr. Bull. 31 563 1904 

 Kentrophyta tegetaria (Watson) Rydberg Torr. Bull. 40 52 1913 



aculcata (Nelson) Rydberg Torr. Bull. 32 665 1905 

 Tragacantha tegetaria (Watson) Kuntze Rev. Gen. 2 941 1891 

 Var. ungulatus Jones 



A. Kentrophyta var. ungulatus Jones Cont. 7 650 1895 

 Mortoni Nutt. Jour. Phil. Acad, 7 19 1834 is Canadensis var. 



Tragacantha Mortoni [Nutt.] Kuntze Rev. Gen. 2 946 1891 

 Mulfordae Jones Cont. 8 18 1898 No. 229 



Onix MuHoidae [Jones] Rydberg Torr. Bull. 40 51 1913 

 jnulticaulis Nutt. in T. & G. Fl. N. A. i 335 1838 is pubentissimus 

 multiflorus Gray Proc. Am. Acad. 6 226 1864 is tenellus 

 Musiniensis Jones Cont. 7 671 1895 No. 171 



Xylophacos Musiniensis [Jones] Rydberg Torr. Bull. 4049 1913 

 naturitensis Payson Bot. Gaz. 60 377 191 5 is desperatus 

 JiJebraskensis Bates Torreya 5 216 1905 is lotiflorus var. 



