﻿Underwood: Selaginella rupestris and its Allies 131 



this species we would also refer Parish no. 671, San Bernardino, 

 Coville & Funston no. 101 from the same locality, and specimens 

 collected from " San Ysabel " by H. W. Henshaw. 



7. Selaginella tortipila A. Br. Ann. Sc. Nat. V. 3: 2. 1865. 



Stems 20-25 cm. long, more or less flexuous, with the elon- 

 gate primary branches compound, rooting only near the base ; 

 leaves loosely imbricate, about six-ranked, narrowly lanceolate, 

 scarcely channeled dorsally, ending in a contorted or irregularly 

 coiled elongate hair point ; margins with 6-12 very short cilia on 

 either side : spikes very short (4-5 mm.) borne at the ends of 

 ordinary branches, subquadrangular, but with loosely spreading 

 broadly ovate-lanceolate bracts, which are dorsally channeled and 

 bear marginal cilia and terminal hairs similar to those of the stem 

 leaves. 



Described from the type specimen, a duplicate of which, mixed 

 with S. rupestris, has recently come into our possession, " In locis 

 rupestribus humidis montium ad Broad River, Carolina, Sept. 

 legit Rugel, July, 1841." Fragmentary specimens had hith- 

 erto been seen from Caesar's head, South Carolina, and from Sa- 

 boola Mountain, Macon County, North Carolina, both collected 



J 



This is the species which Baker describes as " a dwarf form 



>» 



tpL Stf 



cies pulcherrima !" The plant is much more elongate though 



<pcst) 



in common. 



8. Selaginella Extensa sp. nov. 



Stems slender, trailing, 35'40 cm. long, copiously emitting 

 roots throughout their whole extent, with numerous primary 

 branches 1.5-4 cm. long; leaves dark ^^t^ 



cmr uorsai tuduutJ, wiv^x^ — ^ very 



mos 



LiausLucenc point, 111^17 v>*lix .»w — x t - ^n.^„ :„ 



few, appearing like minute serrulations : spikes single «- often in 



pairs at the ends of the primary branches, 1-2 ^»£**^ 



broadly lanceolate, ending abruptly in a point, strongly chelate 



on the margins. ■ , ' . 



On rocks and trees, Las Canoas, San Luis Potos.. Mexico. 

 Pringle, no. 3900, August 21, 1891. Specimens arc also in the 

 Meissner Herbarium, collected in Mexico by C. Mullcr. 



