112 Underwood and Lloyd: Lycopodium 



Porto Rico : Luquillo Mountains, Percy Wilson 2ji (type), 



153- 



This species is perhaps nearest to L. dichotomum, varying in the 



direction of L. setaceum, but widely different from either in habit 

 and structure. We dedicate it to its enthusiastic collector, whose 

 visit to Porto Rico was productive of several novelties in the 

 genus Lycopodium. 



20. Lycopodium Williamsii sp. nov. 



A small slender much-branched epiphyte 10-15 cm. long. 

 Stems slender, pendulous, less than 1 mm. thick, sparsely covered 

 with foliage below, hidden by the copious sporangia above ; leaves 

 scattered, slightly curved, widely spreading or descending, 7-9 

 mm. long by o. 5 mm. wide, linear, acute, with entire margins ; 

 sporophyls shorter, 4-6 mm. long by 0.3 mm. wide, linear; 

 sporangia round-reniform, prominent, relatively large, 1 mm. wide 

 by 0.8 mm. deep. 



Bolivia: New Brazil, 5,500ft., Williams ijpj. 



This beautiful moss-like species was collected by Mr. R. S. 

 Williams on the Conway expedition in 1902, and we are pleased to 

 recognize his discriminating field-work which shows itself in most 

 beautifully prepared specimens, a form of work only possible when 

 a trained botanist is sent to the field, and is not hampered by the 

 necessity of collecting u sets of plants M for commercial or 

 change purposes. 



21. Lycopodium linifolium L. Sp. PI. 1100. 1753. (Type from 



"Amer. merid." based on Dillen, Hist. Muse. pi. 57,f- 5> 



and Plumier, Fil.pl. 166, f. C.) 



Range : Cuba, Hispaniola {Nash 195 *), Porto Rico, Ja- 



maica, Grenada, Trinidad, Mexico, Guatemala, Colombia, Ven- 

 ezuela, Guiana, Bolivia. 



22. Lycopodium Jenmani sp. nov. 



A slender pendent much-branched epiphyte with attenuate 

 branches. Stems very slender, 1 mm. thick, much branched, with 



* These specimens collected by Mr. Nash are simply superb developments of this 



beautiful species, the multitudinous branches of a bushy plant rising from a single stem 



all represented on the sheet, and strikingly in contrast with the old-fashioned M tips 



of branches that constitute too many of the herbarium specimens of a past generation. 



Such specimens as these really give one some idea of the habit and true character of 

 the living plant. 



