480 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



The plant that is known in the Rocky Mountain region as V. 

 Myrtillus may be distinct from the European species. The Ameri- 

 can plant is less green and has shorter and broader less strongly ser- 

 rate leaves than the European type. 



Montana: Missoula, 1898, Williams & Griffitli. 



On page 311, before APOCYNACEAE, insert: 



* Tetragonanthus deflexus (J. E. Smith ) Kuntze, Rev. Gen. PL 431 



[111. Fl. 2 : 620] ; Szuertia deflexa J. E. Smith ; Rees, Cyclop. 

 No. 8 ; Halenia defexa Griseb. ; Hook. Fl. Bor. Am. 2 : 67 [Syn. 

 Fl. 1}'. 127]. 



A light green plant with opposite leaves, and greenish dull white or 

 purplish, 4-spurred corolla. In wet places in open woods. 



Montana : Columbia Falls, 1892, R. S. Williams; Mrs. Kennedy. 



MENYANTHACEAE. 



*Menyanthes trifoliata L. Sp. PI. 145 [111. Fl. 2: 6ii\ Bot. Cal. 



l: 485; Syn. Fl. 2': 128]. 



A water plant with trifoliolate leaves, and white fimbriate bearded 

 corolla. 



Montana : Columbia Falls, Tea-kettle Mountain, 1894, R. S. 

 Williams . 



On page 312, after Acerates viridiflora, add : 

 *Acerates viridiflora Ivesii Britt. Mem. Torr. Bot. Club, 5: 265 



[111. Fl. 3: 14]; Acerates viridiflora lanceolaia A. Gray, Syn. 



Fl. 2': 99. 



Leaves lanceolate or linear-lanceolate. 



Montana: Great Falls, 1892, R. S. Williams, 2'j2. 



On page 317, among the specimens cited under Phlox collina, 

 omit " Grafton, 1892, R. S. Williams, jSS." 



Before Phlox albomarginata insert : 



* Phlox alyssifolia Greene, Pittonia, 3: 27. 



After having received better specimens of R. S. Williams'' No. y68, 1 

 find that they should be referred to this species instead of to my P. 

 collina. The former differs from the latter in the more exserted 

 corolla, and the glandular calyx with narrower lobes and an evident 

 but narrow scarious line below the sinuses. It is therefore much 

 closer related to P. albomarginata. 



Montana: Grafton and Surprise Creek, 1888 and 1892, R. S. 

 Williams, j68. 



