534 



able to sec l}nrp;s(lorr.s (>iij;iiuil (lescriptioii, l)iit Ihu variety was aln-ady known au<l 

 liatl bvun (It'SLiibcd by Liuii;tus in tbr Sijocies I'lautaiuiii. ami by I'allas in tbo I'lora 

 Kossica, altbouj^b not named. Takinj^ WiUdenow as antbority, I adopt tbo name 

 sibhica. Sboiild WilUb-now bave been niistalcen, and IbirgscUjifs sbiiib not bavc 

 been tbe same as bis (tbo identity bas not been denied), tbero is one more name obler 

 tban Wilblenow's tbat bas to be taken into eonsideration, viz, J. communia inontana 

 Ait.,' tbo identity of wbicb witb Liuua-ns variety is not qnestionable. As to tbe 

 rebitionsbip to J. commuiiiSj I am of tbo opinion tbat tbis phxut is best eonsidered as 

 a variety of tbat species, ac nianj' intermediate forms are found. 



Custer, altitude 1,800 ni., June 4 (Xo. HSO). 



Juniperiis sabiiia prostrata (Pers.) Loud. Arbor. Irut. 15rit. iv, 2l9i) (1838); ./. 

 proHiiala Pers. Syn. PI. ii, (5.^2 (1807). 



Tbis name sbould be used instead of ./. nahlna procitmhens Pursb, unless J. horizon- 

 tails Moencb,'- is tbo same. I bavc no means of verify inj; tbe identity of tlio two. 

 Tbe American trailing savin is well distingnisbed from J. sahiiia of Europe. Koeb 

 and Gordon regard it as a distinct species, and to merge it in J. sahiiia, as bas been 

 done lately, is unwarranted. On dry footbills : Hermosa, altitude 1,1(X) m., June 23; 

 Pieduiout, altitude 1,100 m., Juno 27 (No. 1181). 



Junipenis virginiana L. .Sp. IM. ii, 1039 (1753). 



Very rare in tbe bills proper; only two sbrubs seen, on tbe Buckborn Mountain, 

 near Custer, altitude 1,800m., June 1. Jlore common in tbe footbills: Hot Sjirings, 

 altitude 1,100 m., June 15. One sbrub at tbo latter place bad botb male and female 

 flowers (Xo. 1182). 



Pinus pouderosa scopulorum Engclm. l>ot. Cal. ii, 126 (1880). 



Common tbrougliout tbo Black Hills. Tbe X^ortberii Hills were formerly covered 

 witb forest, in wbicb tbis was tbe i)redouiiiiant speines, but a largo ])ortion of tbe 

 tract bas been devastated by mining companies and sawmill operators. Hot 

 Springs, altitude 1,100 m., June 17 (Xo. 1183). 



Picea canadensis (Mill.) B. S. P. Cat. PI. X. Y. 71 (1888); Abies canadensis Mill. 

 Card. Diet. od. 8, no. 4 (17G8). 



Xot uncommcni in tbe biglier bills, especially on the nortliern sides. Fruit: Kocb- 

 ford, altitude 1,G00 m., July 12 (Xo. 1210 7;). 



SBLAGINELLACEJG. 



Selaginella rupestris (L.) Spring, in Mart. Fl. Bras, i, pt. 2. 118 (1810); Lyctqio- 

 dinm riiiwstrc L. Sp. PI. ii 1101 (17.53). 



Ou dry bills; local: Custer, altitude 1.700 m., .luuc (! (Xo. 1184). 



LYCOPODIACE.2E. 



Lycopodiuni obscuruni 1-. Sjt. PI. ii, 1102 (17.53); /,. ilcndroidrum Mx. Fl. ii, 282 

 (1803). 



Micbaux's sjiecies seems tr) be tbo true L. ohscuinm I... 

 Klk Cany«)U, altitude 1,200 m., June 20 (Xo. 1185). 



OPHIOGIiOSSACEiE. 



Botrychium matricariaefolium (?) A. Br. in Doell, K'litiu. Fl. 21 (1813). 



It seems to stand nearest tbis species, but tbe sterile frond is sessile. I took it to 

 be a form of />'. bonalc Milde, witb tbe description of wbicb it agrees quitti well. It 

 dilli-rs, bowevor, from European si)ecimens in tbe Xational Herb.irium, in tbe more 

 slender babit, and in tbo smaller and le.ss crowded divisions of tbe sterile frond, 



"Hort. Kcw. iii, 411 (1789). 



«Mctb. PI. Hort. and Ag. Marlnirg, tiil'.t (1701). 



