ASCLEPIAS 



COLLOMIA 



Hall- M. 



Swamp M . 

 Dwarf M. 



Showy M . 



Skeleton M. 



SWALLOWWORT 



ASCLEPIAS L. (con.) 



A. HALLII A. Gray 



A. curvipes A. Nels. 



A. lonchophylla Greene 

 A. INCARNATA L. 

 A. INVO LUC RATA Engelm. 

 A. LABRIFORMIS M. E. Jones 

 A. MACROSPERMA Eastw. 



A. involucrata var. tomentosa 

 Eastw. 



A. RUSBYI (Vail) Woodson 



Acerates r. Vail 



Asclepias engelmanniana var. 

 r. Kearney 

 A. RUTHIAE Maguire 



A. eastwoodiana Barneby 

 A. SPECIOSA Torr. 



A. douglasii Hook. 

 A. SUBULATA Dene. 

 A. SUBVERTICILLATA (A. Gray) 

 VaU 



A. TUBEROSA L. ssp. TERMINALIS 

 Woodson 

 A. t. ssp. interior Woodson, 

 as to Intermountain 

 plants, up to 1954 



CYNANCHUM L. 



C. UTAHENSE (Engelm.) Woodson 



SARCOSTEMMA R. Br. 



S. CYNANCHOIDES Dene. ssp. 



HARTWEGII (Vail) R. Holm 

 Funastrum h. Schlechter 

 F. heterophyllum (Engelm.) 



Standi . , a synonym to: 

 S. h. of Intermountain authors, 

 not Engelm. 

 S. HIRTELLUM (A. Gray) R. Holm 

 Funastrum h. Schlechter 



CONVOLVULACEAE. Morning-glory Family 



CONVOLVULUS L. GLORYBIND 

 C. ARVENSIS L. European G. 



C. ambigens House 

 C. LONGIPES S. Wats. 



C. SEPIUM L. Hedge G. 



C. amerlcanus (Sims) Greene 

 C. repens L. 



CRESSA L. 



C. TRUXILLENSIS HBK. var. 



TRUXILLENSIS 

 C. depressa Goodding 

 C. erecta Rydb. 

 C. TRUXILLENSIS HBK. var. MINIMA 

 (Heller) Munz 

 C. m. Heller 



Gronovius D 



CUSCUTACEAE. Dodder Family 



CUSCUTA L. (217, 218) 



C. APPROXIMATA Babington var . 



URCEOLATA (Kuntze) 

 Yuncker 

 C_. anthemi A. Nels. 

 C . gracilis Rydb . 

 C. planiflora of American 



authors, not Kuntze 

 C. u. Kuntze 



Parasitic on leguminous crops 



DODDER 



C. CALIFORNICA Choisy var. 



APICULATA Engelm. 

 C. c. of Intermountain authors, 

 not Choisy 



Many hosts 

 C. CAMPESTRIS Yuncker 



C. arvensis Hook., not Beys. 



C. a. var. calycina (Engelm.) 

 Engelm . 



C . pentagona Engelm . var . 

 c . Engelm . 



Many hosts, mostly leguminous plants 

 C. CEPHALANTHI Engelm. 



C . tenuiflora Engelm . 



Many hosts 



C. CORYLI Engelm. Hazel D. 



C . crenulata Engelm . 



C . inf lexa Engelm . 



Many hosts 

 C. CURT A (Engelm.) Rydb. 



C. megalocarpa Rydb. 



Many hosts 

 C. CUSPIDATA Engelm. 



Many hosts 

 C. DENTICULATA Engelm. 



Many hosts 



C. EPITHYMUM Murray Clover D. 



Mostly of leguminous plants 

 C. GRONOVII Willd. 



C. umbrosa Beyr. 



Many hosts 

 C. INDECORA Choisy var. BIFIDA 

 Yuncker 



C. INDECORA Choisy var. NEURO- 



PETALA (Engelm.) Yuncker 

 C. i. of Intermountain authors, 



not Choisy 

 C . n . Engelm . 

 Many hosts 

 C. NEVADENSIS Johnst. 



C. salina Engelm. var. apoda 



(Yuncker) Yuncker 

 C. veatchii Brand var. a. Yuncker 

 ( )n Atriplex species 

 C. OCCIDENTALS Millsp. 



C. californica var. breviflora 

 Engelm . 



Many hosts 

 C. PENTAGONA Engelm. 



C . arvensis Beyr . , not Hook . 



Many hosts, mostly leguminous 

 plants 

 C. SALINA Engelm. 



C. squamigera (Engelm.) Piper 



Mostly on plants of saline regions 

 C. WARNERI Yuncker 



POLEMONIACEAE. Phlox Family (219, 220, 221) 



COLLOMIA Nutt. (222) COLLOMIA 

 C. DEBILIS (S. Wats.) Greene 



C_. d_. var. Integra Pays. 



C. d. ssp. trifida (Pays.) 

 Wherry 



C. d. var. t. Pays. 



C". hurdlei A. Nels. 



C . h. var. i. A. Nels . 



C. h. var. t_. A. Nels. 



Gilia d. S. Wats. 

 C. GRANDIFLORA Dougl. 



C. g. var. axillaris A. Nels. 



C. g. ssp. diffusa (Mulford) Piper 



C. scabra Greene 



Saltmarsh D 



