110 TWELFTH ANNUAL REFORT. 



P.pilosa,L. Hairy Phlox. 



Common throughout the prairie portion of tlie state ; extending northeast to the 

 upper Mississippi river, Houghton, Garrison. 



P. divaricata, L. Phlox. 



Frequent, or common, southward ; extending north to Minneapolis (common), Rob- 

 erts, and Redwood Falls, Pemhcrton. [The var. Laphamii, Wood, occura at Minnehaha 

 falls (plentiful), Roherts, and is also common at Hesper, Iowa, Mrs. Carter.] 



COLLOMIA, Nutt. CoLLOMtA. 



C. linearis, Nutt.* Collomia. 



Pipestone county, Mrs. Bennett. fUpper Missouri river, Oeyer.] West. 



CONVOLVULACE^. Convolvulus Family. 



CONVOLVULUS, L Bindweed. 



C. sepiiiiii, L. (Ca'ysteoria sepium, R. Br.) Hedge bindweed. Bracted 

 Bindweed. 

 Common through the south half of the state and in the Red river valley ; extend- 

 ing northeast to the upper Mississippi river; also, St. Louis river, Af rs. Hem'cfc, and 

 probably throughout Minnesota. 



C sepilim, L , var. repens, Gray.f (var. pubescens, Gray, in Manual.) 

 Clay county, in the Red river valley, Gedge. 



C. spitlianiseus, L. (Calystegia spithamsea, Pursh.) Bracted Bindweed. 

 Throughout the state, but infrequent. Winona county, Holzinger; lake Pepin, Miss 

 Manning; Dellwood, While Bear lake, Ramsey county, Kelley; near Minneapolis 

 (rare), Kasssuhc ; Stearns coupty, Mrs. Blaisdell; St. Louis river, Mrs. Herrick; Red 

 river prairie (rare), Dawson ; Pembina (in woods), Chickering. 



CUSCUTA, Tourn. Dodder. 



C. tenuiflora, Engelm. Dodder. 



Lapham. Blue Earth county, Leibery, determined by T^'atson. South. 



C chlorocarpa, Ergelm. Dodder. 



Minneapolis, Kassube; Blue Earth county, Leiberg. South. 



*CoLLOMiA, Nutt. Corolla tubular-funnelform or salverform with a more or less 

 dilated throat. Filaments slender, unequally inserted, usually protruded. Ovules 

 solitary, few or many in each cell. Seed-coat developing mucilage and projecting 

 numerous spiral threads (spiricles) when wetted (except in C. gracilis). Annuals or 

 some biennials, with alternate leaves (or only the lower ones opposite), which are 

 usually pinnately incised or divided, and with clustered or sometimes scattered flowers. 



C. LINEARIS, Nutt. Annual, more or less viscid -pubescent, becoming glabrate 

 below, glandular above ; stems erect, simple or branching, 6 to 18 inches high ; leaves 

 sessile, lanceolate, very entire ; heads crowded ; lobes of the calyx triangular-lance- 

 olate, acute ; corolla light blue or nearly white, 6 lines long, slender, but little enlarged 

 at the throat, the limb small; ovules solitary; seeds with very numerous spiricles. 

 Porter and Coulter's Flora of Colorado, and Botany of Kind's Report, following Gray's 

 Revision of N. A. Polemoniacea;, Proc. Amer.Acad., 1870, vol. viii. 



t Convolvulus sepium, L., var. kepens. Gray. Corolla from almost white to rose- 

 color : bracts from very obtuse to acute : herbage from minutely to tomentose-pub- 

 escent : sterile and sometimes flowering stems extensively prostrate : leaves more 

 narrowly sagittate or cordate, the basal lobes commonly obtuse or rounded and entire. 

 Gray's Synoptical Flora of N. A. 



