Underwood and Lloyd: Lycopodium 117 



Ceylon material (for we must regard the Ceylon plant as the type 

 of Lycopodium cernuum) in various European collections, com- 

 mencing with that of Linnaeus at London, we are unable yet to 

 point out differences other than minor ones between the plants of 

 Ceylon and those of the West Indies. We are compelled against 

 our tendencies to retain the name cernuum for the common species 

 of the American tropics. Hieronymus has also separated two 

 additional South American species, neither of which affect those 

 which had been already separated by us. 



The four species from America which we have examined may 

 be separated as follows : 



Leaves toothed ; axes bristly ; strobiles elongate (1.5-4 cm.). 31. Z. curvatum. 

 Leaves entire ; axes mainly smooth. 



Strobiles short (1 cm. or less), with deeply ciliate-laciniate 



sporophyls ; branches slender. 30. L. cernuum. 



Strobiles longer (1.5-2 cm. or more); sporophyls slightly 



toothed ; branches stout. 

 Sterile branchlets elongate (5-10 cm.) and pendulous; 



leaves short and abruptly narrowed. 23* L. pendulinum* 



Sterile branchlets short, stout, dichotomously spreading ; 



leaves longer, giadually tapering. 32. L. tor turn. 



30. Lycopodium cernuum L. Sp. PL 1103. 1753. (Type from 

 " Indiis " ; the bulk of the citations commencing with Lin- 

 naeus' own Fl. Zeyl. and Dillen indicate that the East India 

 plant is the one which represents the plant as known to Linnaeus 

 and his predecessors. Plumier, Fil. //. 163 A is cited later 

 as an example of an American plant.*) 



Range : (In America only) Georgia, Florida, Alabama, Mis- 

 sissippi, Cuba, Hispaniola, Porto Rico, Jamaica, S. Thomas, St. 

 Kitts, Guadeloupe, St. Vincent, Dominica, Trinidad, Mexico, 

 Panama, Colombia, Guiana. 



31. Lycopodium curvatum Sw. Syn, Fil. 178, 402. 1806. 



(Type from Jamaica, f) 



* As noted above this plant is the one to be renamed in case the American plant 

 is ever distinguished from that of Ceylon. 



fin publishing this species Swartz cites in synonymy (Uc. cit. 178) Lycopodium 

 arboreum Gmel. (a name apparently unpublished) and Lepidotis convoluta Beauv., a 

 plant imperfectly described in Prodr. L'Aetheog. 108 (1805) from " Les deux Indes/' 

 Later (loc. cit. 402) Swartz in giving a fuller description cites Jamaica as the definite 

 type locality. We cannot say whether Lepidotis convoluta Beauv. is distinct or not, 

 but Swartz's type at least is Jamaican. 



