188 PROCEEDINGS OP THE AMERICAN ACADEMY 



distinct species, as is well shown by Keyserling. Fendler's Venezue- 

 lan 71 is also an example of it, as pointed out by Fournier. 



Adiantdm tenerum, Swartz. At Guajuco, Nuevo Leon (Palmer, 

 without number, a single frond). 



Bleciinum occidentale, Linn. In the mountains around the 

 city of San Luis Potosi (952 Schaffner). 



AsPLENiUJi Trichomanes, Linn. At Soledad, Coahuila (1435), 

 and in the San Miguelito Mountains (917 Schaffner). 



AsPLENiUM PARVULUM, Mart. & Gal. At Georgetown, Texas 

 (1436). 



AsPLENiUM M0NANTHE5IUM, Linn. In the San Miguelito Mount- 

 ains (918 Scliaffner); 978,978^ Parry & Palmer. The pinna? are 

 very often plurisorous, and when this character is seen in fronds of 

 small size, the specimens are not easily distinguished from large forms 

 of A. Trichomanes. 



AsPLENiuM FURCATUM, Thuub. In the San Miguelito Mountains 

 (956 Schaffner). 



AsPLENiUM PUMiLUM, Swartz. On the route from San Luis Potosi 

 to Tampico (1157 Palmer, coll. of 1878). 



AspiDiuM ACULEATUii, Swartz. In the Escobrillos Mountains, 

 small but characteristic specimens (950 Schaffner). — Var. Mouitz- 

 lANUM. (^4. 3foritzianum, Kunze.) In the San Rafael Mountains 

 (948 Schaffner). 



AsPiDiuM PATENS, Swartz. At Sutherland Springs and Uvalde 

 Caiion, Western Texas (1432, 1433), and in the San Miguelito 

 Mountains (965 Schaffner). 



AsPiDiUM ATHYRioiDES, Mart. & Gal. [Nephrodium sphcerocar- 

 pum, Hooker.) In the Morales Mountains (951 Schaffner), and in the 

 San Miguelito Mountains, young plants, not yet producing large fronds, 

 but still fruiting (949 Schaffner). 



AsPiDiUM TRiFOLiATUM, Swartz. At Guajuco (1437). 

 Cystopteris fragilis, Bernh. In the region of San Luis Potosi 

 (1001, 1002 Parry & Palmer) ; on the route to Tampico (1158 

 Palmer, in 1878). 



WoODSiA MOLLIS, J. Smith. In the San Rafael Mountains (957 

 Schaffner) ; also collected by Bourgeau (459). 



WooDSiA OBTUSA, R. Br. (?) Sterile fronds only, collected at 

 Bluffton, Burnet Co., Texas (1434). 



WooDSiA Mexicana, Fee. At Soledad, Coahuila (Palmer, not 

 numbered), and in the San Miguelito Mountains (927 Schaffner) ; 

 1000 Parry & Palmer, in some sets having W. mollis intermixed. 



