Cerastium. CAKVOl'II V1J,ACE.K. 231 



Point Reyes, where first collected hy liujelow, and elsewhere ; a rank jijrowinK form, serving 

 to connect the next species through var. Fisc/ieriuuum, from which in some cases it can 

 scarcely be distinguislied except hy the narrow lower leaves. Simihir rohust forms of C. 

 arvense liave been found on the St. Clair Uiv., Wis., Howjhum, and in N. Illinois, at Joliet, 

 Booil, and Dixon, \'<isi i/. 



Var. Villosum, Holi.kk & Hkitton, 1. c. 49. Densely villous: leaves narrowly 

 lance-oblong to ovatf-lanceolate. — ('. reliitluum, Kaf. Med. Hop. hex. '2, v. 35'J. C. lillosiim, 

 Muhl. Cat. 46 ; Dariingt. Fl. ("est. ed. 2, 279. ! C. hirsuiuni, Darlingt. Florula Cest. 54. C. 

 olilom/i/oliitm, Torr. & Gray, Fl. i. 188, in part; Wats. Bibl. Index, 101. C. urrenHe, var. 

 vehUiintm, Britton, .Mem. Torr. Club, v. 150. — I'ennsylvania, Lancaster Co., Purter, Small, 

 Chester Co., Cnnhii. 



Var. Fuegianum, Hook. f. Depauperate, 2 to .3 inches high, with short tliickish 

 imbricated leaves and sub-solitary terminal Howers. — Hook. f. in (Jrav, Hot. U. S. Kxpl. 

 Exped. 119. — Specimens collected by Coulln- in the Yellow.stone I'ark have been confidently 

 referred to this variety by Ilollick & Britton, 1. c, and no. 41 of J'tirri/ from Northwestern 

 Wyoming is doubtless the same. (Fuegia.) 



C. alpinum, L. Silky-vilkms perennial : .stems weak, matted : leaves elliptic-ovate, 4 to 5 

 lines long : petals notched at the apex, 1^ to 2 times the length of the sepals. — Sjmjc. i. 4.18 ; 

 Torr. & Gray, Fl. i. 188; Hegel, Bull. Soc. Nat. Mosc. xxxv. 314, 315. C. lanalum, Lam. 

 Diet. i. 680. C. lutifoliitm, Greville, Mem. Soc. Wern. iii. 429. C. vuhjutnin. Hook. f. Arc. 

 ri. 288, in part. ? C. Idtifuliuiu, Hart, Jour. Bot. xviii 205. — Arctic America from (irccn- 

 land to Alaska, also in Labrador, the Hud.son Bay region, and upon the Bocky Mts. of 

 Brit. America. (F.ii., Asia.) The following varieties extend farther ."Southward. 



Var. Beeringianum, Rkgkl, 1. c. 316. Tomentulose and less silky-villous, somewhat 

 glaudular-vistid above: leaves smaller, oblong : petals shorter, often .scarcely excee<ling the 

 calyx. — C. Befrinqiiinuiit, Cham. & Sdilecht. Linna-a, i. 62. V. rnli/dliim, var. /iftrint/in- 

 niiin, Fenzl in Ledei). Fl. Boss. i. 409. C. al/jiniim, var. Behn'iif/itiiium, Wats. Bibl. Index, 

 100; Conlter, Man. Rocky Mt. Reg. 33. — Alaska to the Rocky Mts. of Colorado and 

 Arizona. This variety is sometimes difiicult to di.stinguisli from stunted short-leaved forms 

 of C nn-ensp, but its tlowers are less densely aggregated and have the slightly larger firmer 

 and more licrb.accous sepals eliaracteristic of C. al/tiiiiiiu. 



Var. Fischerianum, Tour. & Gr.vy. Tomento.'se or hirsutulous, taller, 8 to 10 

 inches or even more than a foot in height : leaves rather thick, elli|)tic-lanceolate or oval- 

 lanceolate, acute or acutish, an inch or more in length: capsule 1^ to 2 (or rarely 3) times 

 the length of the calyx.— Fl. i. 188; Regel, 1. c. 319. C. litiidum, Ledeb. Mem. Acad. I'etrop. 

 V. 538. C. Fischeriannm, Seringe in DC. I'rodr. i. 419. C. vuli/dtum, vars. (jrandiflorum & 

 marrocarpum, Fenzl in Ledeb. Fl. Ro.ss. i. 409,410. To judge from tiie figure in the Cahpies 

 des De.ssins, C. slellnrioidcs, Moc, should be referred here also, having been placed by Se- 

 ringe probably through an error in § Sirp/ihndon. — A stout variety i):issing to C. (irvense, 

 var. miiTimiim, but with broader more elliptic-ovate leaves and longer capsules. Al.iska to 

 Humboldt Co., Calif., Rntlnn. (Sil)eria, Japan.) The leaves are thicker and the .sepals 

 more pubescent and acute than in C. pi/osum, Ledeb., to which it is also nearly related. 



Var. glabratum. Hook. Leaves and calyx nearly smooth. — Hook, in Parry, 2d 

 Voy. App. 'Mto, & Fl. Bor.-Am. i. 104. — Arctic America with the pubescent forms but much 

 rarer. (X. Eu.) 



§ 3. DiCHODON. Bartl. Styles normallN- 3: tcotli of tln^ oapsule erect or 

 slightly spreading, not ciivinate-revolute. — Bartl. in Endl. Gen. 970. — Our 

 species with symmetrical capsule and short glabrous leaves. 



C. trigynum, Vill. Perennial, with stems weak, spreading, somewhat m.itted, sm<K>th or 

 glaiidular-pubescent, loo.sely 2-3-flowered : leaves oblong, 3 to 5 (to 8) lines in h-ngth : the 

 U]iperm<>st ovate : sepals lance-ovate or oblong, obtuse, 2 to 3 lines long : pet.ils 1 ^ to 2 times 

 the length of the calyx, ol)cordate, bifid nearly half way to the ba.>»e : cajv^ule oblong-<Hinic, 

 twice the length of the calyx : teeth finally spreading. — Pmsp. 48, & Dauph. iii. 645, t. 46; 

 Fenzl in Ledeb. Fl. Ros.s. i". 396. C. rrnis'tioid,s, Britton. Mem. Torr. CInl). v. l.-iO. Sirlla- 

 rtn cfnistoidi's. L. Spec. i. 422; Torr. vii Gr.iy, Fl. i. 184; H<H>k. f. An-. I '1. 288. — Table- 

 topped mountain, Gaspe, Lower Canada, Allen; CajH) Chudleigh. Hudson Strait. Brtl; 



