VAN ESELTINE—SELAGINELLA RUPESTRIS ALLIES. 171 
7. Selaginella sherwoodii Underw. Torreya 2: 172. 1902. 
Sclaginella rupestris sherwoodii Clute, Fern Allies 142, 264. 1905, 
PLATE 22. Figure 69. 
Piants ascending, densely cespitose, somewhat rigid, 8 to 12 cm. high, pro- 
ducing rhizophores only at the base of the shoots: stems (including ieaves) 
1.5 to 1.75 mm. thick, densely repeatedly branched at intervals of scarcely 10 
win, between the larger branches, and of scarcely 5 mm. between the ultimate 
branchlets; lower branches loosely ascending, similar to the shoots but shorter ; 
ultimate branchlets simple, less than 5 min. long, as thick as the primary 
shoots; leaves about 13-ranked, closely appressed, imbricate, in younger stages 
pale olivaceous to glaucous green, in age becoming ochraceous to dark cinereous 
brown, chartaceous, thickish, slightly concave above with a slight median ridge 
in older leaves, strongly convex beneath, either not channeled or shallowly sul- 
cate dorsally in the lower two-thirds, narrowly elliptic-ovate from a long decur- 
rent base, abruptly setigerous at the blunt semiterete apex, minutely ciliate 
oS 
oN 
x 
Fie. 69.—Details of Sclaginella sherwoodii. «a, Dorsal view of leaf; 6b, ventral view ; 
ce, dorsal view of sporophyll; d, ventral view; e, commissural face of megaspore ; 
f, outer face. From specimen collected on Satulah Mountain, near Highlands, North 
Carolina, August 80, 1882, by John Donnell Smith; U. S. Nat. Herb., no, 834949, 
Scale 30. 
on the margins; largest leaves 1.5 mm, long. 0.35 mm. wide at the base; setee 
fibriform, extremely tortuous (in dried specimens), minutely spinulose, white, 
up to 1 mm. long; cilia 8 to 15 on each side of the leaf, 0.038 mm. long. 
Spikes terminal, inconspicuous, less than 5 mm. long; sporophylls similar to 
the leaves but wider at the base and more deeply suleate. 
Megasporangin arranged ou the ventral side of the spike, yellowish, the 
widest diameter 0.6 min.; megaspores tuberculate-rugose, yellow, 0.4 mim. in 
diameter; microsporangia arranged on the dorsal side of the spike, reniform, 
flattened, 0.6 mm. in widest diameter; microspores red to orange, 0.046 mm, 
in diameter. 
The type, in the herbarium of the New York Botanical Garden, was collected 
near Highlands, Macon County, North Carolina, by W. L. Sherwood. 
