MAXON STUDIES OF TROPICAL AMERICAN FERNS. 13 



Adiantum flexuosum Hook. 



11. 1191. Coban, altitude 1,350 meter?, August, 1907; in crevices of rocks. 



Received under the name A.feei Moore, a Mexican species from which it is quite 

 distinct, as indicated by Christensen. Collected also on dryish banks in the region 

 of pines and oaks near Purulha, Baja Verapaz, Guatemala, Maxon 3371. 



Bommeria pedata (Sw.) Fourn. 



II. 2327. Fatal, near Santa Rosa, Baja Verapaz, altitude 1,600 meters, July, 1908. 



Cheilanthes f arinosa Kaulf. 

 II. 1568. Near Tactic, Alta Verapaz, altitude 1,600 meters, February, 1908. 



Histiopteris incisa (Thunb.) J. Sm. 



II. 1535. Upon the height between Coban and Tactic, Alta Verapaz, altitude 2,000 



meters, December, 1907, and March, 1908. Rare. 

 A widely distributed collective species, greatly in need of critical revision. 

 Pellaea intramarginalis (Kaulf.) J. Sm. 



II. 2177. Near Santa Rosa, Baja Verapaz, altitude 1,600 meters, upon rocks, March, 

 1908. 



Pteris deflexa Link. 



II. 1560. Upon the height between Tactic and Coban, Alta Verapaz, altitude 2,000 



meters, February, 1908. 

 Determined by Doctor Christ. 



Pteris mexicana (Fee) Fourn. 



II. 1235. Coban, altitude 1,350 meters, December, 1907. 

 Received as P. pulchra Schlecht. 



Pteris orizabae Mart. & Gal. 



II. 2109. Caucale, near ('oban, altitude 1,200 meters, February, 1908. 

 Determined by Doctor Christ . 



Trismeria tritoliata (L.) Fee. 



II. 1277. Near Coban, altitude 1,350 meters. October, 1907. 



Tribe ASPLENIEAE. 



Asplenium cirrhatum Rich.; Willd. Sp. PI. 5: 321. 1810. 



II. 1675. Forests between Purulha and Panzal, Baja Verapaz, altitude 1,500 meters, 

 April, 1907. 



II. 2030. At the highest elevation between Coban and Tactic, altitude 2,000 meters, 

 December, 1907. 



II. 2211. Sasis, Alta Verapaz, altitude 1,100 meters, May, 1908. 



The bipinnatifid and tripinnatifid forms of the variable species known usually 

 under the Linneean name Asplenium rhizophorum, recently discussed elsewhere by 

 the writer." The typical simply pinnate form is from Guadeloupe. 



Asplenium conquisitum Underw. & Maxon; Christ, Bull. Herb. Boiss. II. 7: 270. 



1907. 



II. 1684. Epiphytic-, in the forest above Panzal, Baja Verapaz, altitude 1,500 

 meters, April, 1907. 



This species is known from Jamaica, Guatemala, and Costa Rica. See Contr. 

 Nat. Herb. 10: 488. 1908. 



Asplenium erectum Bory. 

 II. 1853. Coban, altitude 1,350 meters, March, 1907. 



« Contr. Nat. Herb. 10: 490, 491. 1908. 



