MONTANA BOTANY NOTES 39 



Euphorbia glytosperma Eng. St. Ignatius Mission, Ravalli, Belton, Co- 

 lumbia Falls. 



Euphorbia dictyospei ma F. & M. Ravalli. 



Caiiitriche palustris L. Bisfork, Ravalli, Alta, Darby, Browning. 



Callitriche autumnalis L. Ronan, Evaro. 



Rhus glabra I.. Ravalli. 



Rhus Toxicodendron I.., R. Rydbergii Small. Frequent among rocks in 

 all lot-alitios at Idw elevations. 



Impatiens biflora Walt. Common in swamps at St. Ignatius Mission, Hot 

 Springs, Ravalli, Sand Point (Idaho) and Bigfork, where it is in the latter 

 place wlinlly clt'istogamous. 



Impatiens biflora var. ecalcarata Blankinship (Mont. Ag. Coll. Stud. 1 85 

 as species). This is simply a sjjurless form and grows along "with the type. 

 Also Swan Lake (Miss Norton). 



Rhamnus Purshiana DC. Bigfork, Ravalli. 



Ceanotlius velutinus Dougl. MacDougal and McDonald Peaks, Upper 

 Marias Pass. 



Glossopetalon spinescens Gray. Alta. 



Ampelopsis quinquefolia (L.) Mx., Parthenocissus— (L.) Planch, etc. Swan 

 Lake, introduced. 



Maivastrum coccineum (Pursh) Gray. Bitter Root and Deer Lodge Val- 

 l('\s, Browning. 



Malva rotundifolia L. St. Ignatius Mission. 



Sidalcea Oregana Gray. Ronan. 



Hypericum Canadense var. boreaie Britton. Poison Swamp, Bigfork. 



Hypericum formosum HBK. Common from Ravalli to Blackfoot Glacier 

 and St. Mary's Lake. 



Hypericum Nortonae, n. sp. Miss Norton's St. John's Wort. Stems about 

 10 cm. long, erect from slender underground rootstocks, barely angled, simple. . 

 Leaves rather congested, nearly round to oval-ovate, obtuse, thick and 

 scarcely at all black-punctate 1.5-2.2 cm. long, cordate, sessile, not clasping. 

 Flowers 1-3, terminal, on a short, 2-bracted pedicels. Sepals ovate, obtuse, 

 about 2.5 mm. long, greenish with purplish tips. Petals rather narrow 

 strongly-many-nerved, yellow, 1-1.5 cm. long. Stamens many. Styles 3. 

 long, distinct. Pods ovate, 3-lobed at tip. It is evidently allied to H. for- 

 mosum. Alpine in moist places. McDonald Peak, Elrod Peak (Elrod). 

 Dedicated to Miss Gertrude Norton, who has worked long on the flora of 

 this region. Upper Marias Pass, Sperry Glacier, Lambert Valley. It shows 

 no variation toward H. formosum. 



Elatine Americana Arn. Common throughout the Flathead Valley. 



Elatine brachysperma Gray. Alta. 



Viola nephrophylla Greene. Bigfork, Swan Lake, Poison, Rost Lake, Wikl 

 Horse Island. Common. 



Viola Canadensis L. Bigfork, Swan Lake, Rost Lake, McDonald Lake in 

 the Mission Mountains, Blackfoot Glacier. Also gathered by all previous 

 collectors. 



Viola glabella Nutt. MacDougal Peak, Bigfoi-k. Wild Horse Island. 



Viola venosa (Wat.) Piper. Bigfork (Elrod). 



Viola sarmentosa Dougl. McDonald Peak and Lake. 



Viola sarmentosa var. orbiculata (Geyer) Gray. Bigfork. Yellow Bay, 

 Bt'lton. 



Mentzelia laevicaulis (Dougl.) T. & G. Garrison. 



Opuntia polyacantha Haw. Garrison, Browning. 



Circaea alpina L. Common in damp and deep woods from the Mission 

 Mountains northward. 



Circaea alpina var. Pacifica (Asch. & Mag. Bot. Zeit. 29 392 as species). 

 This has deeper toothed leaves and normally minute bracts on the racemes 

 but there are all sorts of intergrades. Yellow Bay. 



Gaura coccinea Pursh. Ravalli, Browning. 



