534 
able to see Burgsdort’s original description, but the variety was already known and 
had been described by Linnius in the Species Plantarum, and by Pallas in the Flora 
Rossica, although not named. Taking Willdenow as authority, I adopt the name 
sibirica. Should Willdenow have been mistaken, and Burgsdorf’s shrub not have 
been the same as his (the identity has not been denied), there is one more name older 
than Willdenow’s that has to be taken into consideration, viz, J. communis montana 
Ait.,! the identity of whieh with Linneus variety is not questionable. As to the 
relationship to J. communis, I am of the opinion that this plant is best considered as 
a variety of that species, ac many intermediate forms are found, 
Custer, altitude 1,800 m., June 4 (No. 1180). 
Juniperus sabina prostrata (Pers.) Loud. Arbor. Frut. Brit. iv, 2499 (1838); J. 
prostrata Pers. Syn, PI, ii, 632 (1807), 
This name should be used instead of J. sabina procumbens Pursh, unless J. horizon- 
talis Moench,’ is the same, Ihave no means of verifying the identity of the two. 
The American trailing savin is well distinguished from J. sabina of Europe. Koch 
and Gordon regard it as a distinet species, and to merge it in J. sabina, as has been 
done lately, is unwarranted. On dry foothills: I ferinosa, altitude 1,100 m., June 23; 
Piedmont, altitude 1,100 m., June 27 (No. 1181). 
Juniperus virginiana L.. Sp. Pl. ii, 1039 (1753), 
Very rare in the hills proper; only two shrubs seen, on the Buckhorn Mountain, 
near Custer, altitude 1,8001m., June 4. More eommon in the foothills: Hot Springs, 
altitude 1,100 m., June 15. One shrub at the latter place had both male and female 
flowers (No. 1182), 
Pinus ponderosa scopulorum Engelin. Bot. Cal. ii, 126 (1880), 
Common throughout the Black Hills. The Northern Hills were formerly covered 
with forest, in which this was the predominant species, but a large portion of the 
tract has been devastated by mining companies and sawmill operators. Hot 
Springs, altitude 1,100 m., June 17 (No. 1183). 
Picea canadensis (Mill.) B.S. P. Cat. Pl, N. Y. 71 (1888); Abies canadensis Mill. 
Gard, Dict. ed. 8, no, 4 (1768). 
Not uncommon in the higher hills, especially on the northern sides. Fruit: Roch- 
ford, altitude 1,600 m., July 12 (No. 12103), 
SELAGINELLACES. 
Selaginella rupestris (L..) Spring, in Mart. Fl. Bras, i, pt. 2, 118 (1840); Lycopo- 
dium rupestre L. Sp. Pl. ii 1101 (1753), 
On dry hills; local: Custer, altitude 1,700 m., June 6 (No. 1184). 
LYCOPODIACES:. 
Lycopodium obscurum L. Sp. Pl. ii, 1102 (1753); L. dendroideum Mx. FI. ii, 282 
(1803). 
Michaux’s species seems to be the true L. obscurum LL. 
Elk Canyon, altitude 1,200 m., June 29 (No. 1185). 
OPHIOGLOSSACES. 
Botrychium matricarizfolium (?) A. Br. in Doell, Rhein. Fl. 24 (1843), 
It seems to stand nearest this species, but the sterile frond is sessile. I took it to 
be a form of B. boreale Milde, with the description of which it agrees quite well. It 
differs, however, from European specimens in the National Herbarimn, in the more 
slender habit, and in the smaller and less crowded divisions of the sterile frond, 
‘Hort. Kew, iii, 414 (1789). 
*Meth. Pl. Hort. and Ag. Marburg, 699 (1794). 
