MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. I47 



*Cerastium arvense strictum (L.) ; Cerasthmi strictum L. Sp. PI. 439 ; 



C. arvcnsc latifoUiun Fenzl ; Ledeb. Fl. Ross, i: 412 [Syn. 



Fl. i^ : 230] ; not Cerasiium latifolinm L. 



Plant low, more pubescent; leaves short, 12-16 mm. long. Com- 

 mon in the alpine regions, at an altitude of 2500-3500 m. 



Montana: Spanish Peaks, iS()6, Fhdnian, ^2j ; Little Belt Mts., 

 ^26; Old Hollowtop, Pony, July 7, 1897, Rydherg & Bcsscy, zfoig 

 and 4024.; Electric Peak, Aug. 18, 4.026; Cedar Mountain, July 16, 

 402J ; Lima, 1895, Rydberg; 2638; Madison Co., 1888, Tzueedy, 

 143 ; Upper Marias Pass, 1883, Canby, 41. 



Yellowstone Park: 1884, Tzi^cedy, 2g4; 1883, Miss Mary 

 Compton. 



* Cerastium arvense Fuegianum Hook, f . ; A. Gray, Bot. U. S. 



Expl. Exp. 119 [Syn. Fl. i^ : 231 ; Britt. & Holl. Bull. Torr. Bot. 



Club, 14: 50]. 



Low ; leaves thick, small and imbricated ; flowers solitary or in 

 2-3-flovvered cymes. On geyser formations and on dr}^ mountains, 

 at an altitude of 2500-3500 m. 



Yellowstone Park : Lower Geyser Basin, 1879, J. Af. Coulter ; 

 Electric Peak, Aug. 16, iSg'j, Rydberg d- Bessey, 402^ and 40J0; 

 Lower Geyser Basin, Aug. 4, 402J. 



Cerastium alpinum L. Sp. PI. 438 [Syn. Fl. i' : 231 ; Man. R. M. 



33; 111. Fl. 2: 27]. 



On exposed mountain tops, among rocks, at an altitude of 3000 m. 



Montana: Mountains near Indian Creek, July 22, Rydberg d- 

 Bessey, 40J1 ; Upper Marias Pass, 1883, Canby, 40. 



Cerastium Behringianum Cham. & Schl. Linnaea, i : 62 : Cerastium 



al-pimim var. Beeringianum Regel, Bull. Soc. Nat. Mosc. 35 : 316 



[Syn. Fl. i^ 231 ; Man. R. M. 33]. 



Evidently a good species and nearer related to C. arvense than to 

 C. alpinum, although the sepals are more like those of the latter. 



Among rocks, at an altitude of 3000 m. or more. 



Montana: Old Hollowtop, Pony Mts., July 7 and 9, 1897, Ryd- 

 berg & Bessey, 402J and 4028. 



Sagina saginoides (L.) Britton, Mem. Torr. Bot. Club, 5: 151 [HI. 



Fl. 2: 30]. 



Spergula saginoides L. Sp. PI. 441 : Sagina Linnaei Presl, Rel. 

 Haenk. 2 : 14 [Syn. Fl. i^ : 249 ; Man. R. M. 36 ; Bot. Cal. i : 70] • 



