314 Alexander W. Evans, 



VII. Porella L. 



16. Porella arborea (Tayl.) Trevis. 



Madotheca arborea Tayl. Jour. Bot. 5: 379. 1846. 



Porella arborea Trevis. Mem. R. 1st. Lomb. III. 4: 407. 1877. 



On earth, San Miguel, 5,000-6,000 feet, July 24, 1911. 



The specimens are sterile but agree pretty closely with those 

 collected by Spruce at Tunguragua, Ecuador, and distributed in his 

 exsiccatae. The original material of the species was found by Jameson 

 in the province of Pichincha, Ecuador. According to Stephani it is 

 abundant in the Peruvian Andes. 



17. Porella squamuliJera (Tayl.) Trevis. 



Madotheca squamulifera Tayl. Jour. Bot. 5: 378. 1846. 



Porella squamulifera Trevis. Mem. R. 1st. Lomb. III. 4: 407. 1877. 



On wood, Lucma, 7,000 feet, August 7. 1911. 



The specimens, which are sterile, have been carefully compared 

 \\ith those collected by Spruce at Pangor, Ecuador, and distributed 

 in his exsiccatae. Although the Peruvian material does not agree 

 very closely with Spruce's specimens in general habit, no structural 

 differences could be demonstrated, and it therefore seems advisable 

 to refer them to P. squamulifera, at least provisionally, rather than 

 to try to separate them as a distinct species. The type material 

 of P. squamulifera was collected by Jameson in the province of 

 Pichincha, Ecuador, and according to Stephani the species occurs in 

 the Andes of Peru. 



VIII. Microlejeunea (vSpruce) Jack & Steph. 

 18. Microlejeunea bullata (Tayl.) Evans 



Lejeunea bullata Tayl. Jour. Bot. 5: 398. 1846. 



Microlejeunea bullata Evans, Mem. Torrey Club 8: 164. pi. 21, 

 /. 20-29. 1902. 



On rocks, Santa Ana, 3,000 feet, August 4, 1911. 



The specimens are sterile and in very small amount but are appar- 

 ently correctly determined. M. bullata is a widely distributed spe- 

 cies, originally described from material collected by Guilding on the 

 island of St. Vincent. It is now known also from South Carolina, 

 from Florida, from several additional islands in the ^^'est Indies, 

 and (according to Spruce) from numerous localities in Ecuador. 



