LINDMAN, AMERICAN SPECIES OF TRICHOMANES SM. 55 



anil I give a drawing from the numerous specimens in Herb. 

 Stof'kliolm. 



It is evident, that Tr. lineolatum is most nearly allied 

 to Tr. punctatum by its thick strong veins, v^hich all become 

 thicker towards the end; but it is a much larger plant than 

 punctatum (üg. 30, A, B), in some cases attaining almost the 

 same size as Tr. qucrcifolium (lig. 7) and rcptans (fig. 17). 

 The base is also very gradually narrowed to the stipes, ex- 

 cept in very small sterile fronds, which have roundish or 

 cordate base and subflabellate venation, but all veinlets as 

 broad as in the largest fronds. Above all it may be observ- 

 ed, that the veinlets are all exceedingly thick and rapidly 

 increase in width, terminating at the margin in a very broad 

 and truncate extremitj'. and are so close to each other, that 

 the interspaces are often not much broader, than a veinlet. 



This species has been mistaken for >.Tr. reptans Sw.», 

 Jouru. of Bot., 20, 1882, p. 327. In fact its largest forms, 

 fig. 31, B, come near the true rcptans Sw. (see above fig. 17) 

 as to shape, size, and cutting, but the peculiar venation distin- 

 guishes it at a glance from reptans and all other species of 

 Didymoglossura . 



Area: Cuba, Wright n. 952. There are also individuals 

 (without name) in Herb. Swartz, probably from the West 

 Indies. 



