THREE NEW CLUB-MOSSES FROM PANAMA' 



By WILLIAM R. MAXON 

 With Three Plates 



In a previous paper ' relating to a singular new fern {Polypodium 

 podocarpuni) from Panama, I have described very briefly the mcun- 

 tian region above David in the province of Chiriqui, and have referred 

 in particular to a most interesting collecting trip of three days which 

 I took from El Boquete over " Holcomb's trail " along the Rio Cal- 

 dera to " Camp I " and to the summit of the Continental Divide a few 

 miles farther on. The heavily forested mountain slopes are here 

 intensely wet, and, as is usual under such conditions, a large pro- 

 portion of the pteridophyta ai'e epiphytes. Species of Lycopodium do 

 not appear to be very common, but of the several collected three seem 

 to have been hitherto unknown. These may be described as follov»?s : 



LYCOPODIUM FOLIACEUM Maxon, sp. nov. 



Plate i 

 A coarse, stout, diffuse epiphyte, probably of ascending growth, 

 attaining a length of 40 cm., sporangiate without interruption in the 

 upper third or half, the sporophyls similar to the foliar leaves but 

 gradually smaller toward the ends of the branches. Stem very stout, 

 woody, about 4 mm. in diameter at the base, i to 4 times dichotomous, 

 the branches divaricate, about 2 mm. in diameter near the tips ; leaves 

 very numerous and close, borne in 10 ranks and by tortion somewhat 

 dorsiventrally arranged, those of the 8 under and lateral ranks usually 

 divergent at right angles (except in drying) or slightly ascending, 

 twisted at the base, those of the 2 uppermost rows strongly refiexed, 

 straight, all the leaves otherwise alike, symmetrical, rigidly herbaceous 

 to subcoriaceous, oblong-elliptic to oblanceolate from a narrowly long- 

 cuneate base (the base reddish-punctate below), thus sometimes 

 appearing subspatulate, 10 to 13.5 mm. long, 2.5 to 4.5 mm. broad near 



' This paper is the fifth dealing with the results of the Smithsonian Biological 

 Survey of the Panama Canal Zone. 



« Smithsonian Misc. Coll., Vol. 56, No. 24, pp. 1-4, pls- i-3, November 

 22, 191 I. 



Smithsonian Miscellaneous Collections, Vol. 56, No. 29 



