204 



Stuntz : North American Species of Eleutera 



No North American specimens of E. fontinaloides (,V. piimila) 

 have been seen, and it is likely that Bruch and Schimper were 

 wrong in crediting it to North America. N. Litdoviciae and N. 

 cymbifolia are referable to Pilotrichnm, as is probably N. Floridana 

 also, although all the specimens examined bearing this name in 

 herbaria are really E. disticlia. 



Synopsis of tlie Species 



I. E. 



r>ougIasii, 



Leaves acute or acuminate. 

 Spinulose. 



Not spinulose. . 2 . E. pennata. 



Leaves rounded or Ungulate, apiculate or abruptly acuminate. 

 Leaves undulate. 



Costa y z length of leaf or less. 



Delicate, branched. 



Robust, simple. 

 Costa y z length of leaf. 



Long, loose, flagellate. 

 Short, soft, no flagella. 



2a. E. pennata oligocarpa. 

 2b. E. pennata pterantha. 



Leaves plane. 

 Leaves obtuse. 



3. E. JMenziesii. 



3a. E. A/cnziesii limnobioides 



4. E. ornithopodioides. 



Base of leaves unsymmetrical, costa far to one side. 5. E. disticha. 



Base of leaves symmetrical. 



6. E. Jamaicensis. 



i. Eleutera Douglasii (Hooker) nom. nov. 



>Ph 



green : primary stems 3—4 cm. long : 

 pinnately branched : branches long, 



or yellowish- 



0-20 



„. attenuate to apex: leaves 

 lanceolate-acuminate, spinulose at apex, wavy at base, thin, glossy, 

 ecostate : dioicous : outer perichaetial leaves ovate, acute denti- 

 culate at apex, inner leaves lanceolate, acute, reaching to base of 

 capsule or rarely higher. Sporophyte : capsule oval, reddish-brown, 

 becoming chestnut, entirely exserted : lid long-rostrate, oblique! 

 teeth yellow, articulate : segments equaling teeth, the latter not 

 divided between articulations. (In honor of David Douglas 

 (1798-1834), an early northwestern collector, who collected ^the 

 species on the Columbia River.) 



Type locality, Columbia River. 



Trees and shaded rocks, Alaska, Vancouver Island and Coast 

 Range, B. C, east to Lake Pend d'Oreille, Idaho, south to San 

 Mateo Co., California. 



w » • » ^B» . ■■■■ 



1830. Neckera Douglasii Macoumi Kdbg. Bull. Torr. Club 17: 



Syn.: Nickera Dmgtossii Hooker, Bot. Misc. 



I 



275. 



1890. 



