80 University of California Publications in Botany [VOL. 9 



4. SELAGINELLACEAE 

 1. SELAGINELLA 



1. Selaginella Watsoni Underw., Bull. Tor. Bot, Club, vol. 25, 

 p. 127. 1898. 



Type locality. Not given but the type (Watson 1370) was col- 

 lected in the East Humboldt Mountains, Nevada, at 8,000 feet, as 

 appears from the label. 



Range. "Apparently confined to high altitudes of the Sierra 

 Nevada and neighboring mountains." 



Zone. Hudsonian. 



Specimens examined. Cloud's Rest, Yosemite, 9,500 feet, in gran- 

 ite sand, Smiley 515 (does not completely agree with the type as the 

 leaves are stouter than in "Watson's plant) ; above Donner Lake 

 toward Donner Pass, Heller 7167. 



Coville and Funston 2071, from 1,700 feet above timber line on 

 Mt. Whitney, is cited in the description, as is Hansen from Alpine 

 County at 8,000 feet. 



5. ISOETACEAE (QUILLWORT FAMILY) 

 1. ISOETES 



Stomata present; leaves soft, long attenuate 1. I. Bolanderi 



Stomata absent; leaves firm, abruptly acuminate 2. I. pygmaea 



1. Isoetes Bolanderi Engelm., Am. Nat., vol. 8, p. 214. 1874. 

 Type locality. ' ' In ponds and shallow lakes on the Sierra Nevada 



of California, at an altitude of 5,000-10,000 feet," and "Yellowstone 

 Lake, 7,400 feet altitude." Bolander and Parry. 



Range. California to Washington, east to Colorado and Montana. 



Zone. Canadian. 



Specimens examined. Lakes in Summit Valley, 7,500 feet, Pringle, 

 September 22, 1882; Glacier Point Meadows, Yosemite, Smiley 492; 

 near Whitney meadows, in ponds at 3,000 m., Coville and Funston 

 1643; Tuolumne meadows, in ponds back of Muir Lodge, 8,500 feet, 

 Smiley 747. 



2. Isoetes pygmaea Engelm., Am. Nat., vol. 8, p. 214. 1874. 



I. Bolanderi Sonnei Henderson, Bull Torr. Bot. Club, vol. 27, p. 358. 1900. 



Type locality. "In large patches in mud, covering gravel, deeply 

 submerged in running water, on the Mono trail, eastern declivity of 

 the Sierra Nevada, 7,000 feet alt." Bolander. 



