106 Underwood and Lloyd: Lycopodium 



agrees perfectly, so that it is necessary to retain Spring's name 

 with an emended application. We have therefore drawn up a 

 fresh description from a recently collected plant : 



A stout terrestrial plant with 2-3 forks, and leaves crowded 

 in about 20 ranks. Stems 20 cm. or more long ; leaves 5 mm. 

 long or more by 0.8 mm. wide at the base, entire, tapering to an 

 acute apex, spreading, slightly ascending, curved dorsiventrally 

 at the base and near the apex ; sporangia reniform, exceeding 

 the sporophyl in width by only a small amount. 



Martinique: Sieber 56 (specimens in herb. Berol.); Hahn 

 1263 (specimens in herb. Kew). 



St. Kitts : Mt. Misery, among ferns, Brittoii & Cowell 5^7. 

 Only a single plant was collected, but its characters are so strik- 

 ingly different from L. reflexum and L. rigidum, its nearest allies, 

 that we do not hesitate to take up Spring's name for it as repre- 

 senting a valid species. This plant is no doubt included by Baker 

 in his description of L. rigidum, and Hahn's plant above cited was 

 found under the cover of L. rigidttm at Kew. We have not seen 

 the plants from Peru and Chile, cited by Spring, so can give no 

 details of its distribution further than recorded above. The habitat 

 of the plant seems to be the volcanic craters of the Lesser Antilles. 

 The exact locality of Sieber's plant is not recorded. Hahn's 

 plant came from Mont Pelee and the St. Kitts specimen was found 

 in the similar crater of Mt. Misery. It probably will be found on 

 all the volcanic mountains of this group. 



5. Lycopodium densifolium (Baker) sp. no v. 



Lycopodium reflexum var. densifolium Baker, Handbook of Fern 



Allies 11. 1887. 



A terrestrial plant 3 5 cm. or less tall, 2-4-dichotomous. Stems 

 stout, 4-6 mm. or more in diameter exclusive of the leaves ; leaves 

 in about 20 ranks, crowded, 4-5 mm. long by 1 mm. wide at base, 

 tapering from a point one fourth the length from the base to the 

 acute mucronate apex which appears obtuse from above or below 

 owing to the excessive curvature, stiff, spreading at right angles 

 to the stem, strongly curved upward (or nearly hooked) at the 

 apex, thickened dorsiventrally throughout the curve ; margins 

 with a few (1-5) short triangular multicellular straight or reflexed 

 teeth near the base, and a few others more widely scattered 

 throughout the length ; sporangia broad, mostly confined to the 

 upper portions of the stems. 



