564 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Polypodium cancellatum Fée is precisely P. lindenianum Kunze. It was 
founded upon specimens said to have been collected in Cuba by Linden. Kuhn 
long ago correctly pointed out’ that, no other collector having found this species 
in Cuba and Linden having collected not only in Cuba, but also in Venezuela 
and in Mexico, the locality “Cuba” was probably erroneous. 
Polypodium verapag Christ was described upon three collections from eastern 
Guatemala, one of which (von Tiirckheim 7726) is at hand. This is apparently 
a young state of P. lindenianum, differing in no respect from other immature 
examples of this species. 
Kunze’s figure, and more particularly Fée’s, will convey an excellent idea of 
this species. It is most nearly related to P. friedrichsthalianum. 
The following collections, represented by many specimens, are in the U. 8. 
National Herbarium: 
GUATEMALA: Cobain, Alta Verapaz, alt. 1.850 meters, von Tiirckheim (J. D. 
Smith, no. 1); Salvin. Senaht, Alta Verapaz, Maron & Hay 33804. 
Cubilquitz, Alta Verapaz, alt. 105 meters, von Titrekheim (J.D. Smith, 
no, 7726). 
Mexico: Cerro del Boquer6én, Chiapas, Purpiuts 7227. 
5. Polypodium friedrichsthalianum Kunze, Farrnkr. 2: 55. 1850. 
TYPE LOCALITY: Guatemala ? (/’riedrichsthal 1822). 
DISTRIBUTION: Mountains of Costa Rica, altitude 810 to 1,550 meters. Also 
in Guatemala (7). 
ILLUSTRATIONS: Kunze, op. cit. pl. 123; Mett. Abh. Senckenb. Ges. Frankfurt 
2: pl. 1. f. 17. 
The precise locality for Friedrichsthal’s plant was unknown to Kunze, and it 
is quite likely that in this instance as in others (for example, that of Hemitelia 
nigricans Presl),? the type specimen, though credited to Guatemala, did not 
actually come from the present limits of that country. At any rate P. fried- 
richsthalianum has not been rediscovered there during the rather extensive 
botanical exploration of recent years. Christensen assigns to it the range 
“ Mexico—Costa Rica”; but it is probable that it does not occur in Mexico, its 
reported occurrence there being due to its confusion with P. lindenianum. It 
is known at present chiefly, if not wholly, from Costa Rica, where, according to 
the writer’s observations and several records by Christ,’ it is common at middle 
elevations in the interior mountain region, growing as commonly perhaps upon 
old stone walls as upon tree trunks. As Christ has remarked, its segments are 
almost filiform and are greatly exceeded by the large sori. Kunze’s figure well 
represents a plant of medium size except as to rhizome scales, which should be 
like those of P. lindenianum. 
The following collections, representing a large series of specimens, are in 
the U. S. National Herbarium: 
Costa Rica: Alto de Ochmogo, alt. 1,550 meters, 7'onduz 10391. San Isidro, 
alt. 1,100 meters, Alfaro 105. Cerro de San Isidro, near San Ram6n, 
alt. 1,200 to 1,300 meters, Brénes 14222. Alajuela, alt. 810 meters, 
Cooper (J. D. Smith, no. 6051). Vicinity of Cartago, alt. 1,800 to 1,500 
meters, Beyer 19; Maxon 26; J. D. Smith 5100, 6962. Santiago, near 
San Ramon, alt. 1,100 meters, Brénes 14241; Tonduz 17574, El Rosario 
de Rosi, alt. 1,120 meters, Pittier 16624. Rio Virilla, Biolley. With- 
out exact locality, Wercklé ; Cooper. 
1 Abh. Naturf. Ges. Halle 11:21. 1869. 
7Bull. Torrey Club 38: 547, 1911. 
®In Pittier, Prim. Fl. Costar, 3:13. 1901; Bull. Herb. Boiss, II. 5: 258. 1905. 
