28 



a homonym) and Isac/me dive held as distinct from Fanicum, while 

 Synthcrisuia and Echinoch/oa, equally as valid genera, are merged 

 in that polymorphic receptacle Paiiiciun ; and again, Paspaluiii^ 

 the line between which and Fauicuui is so frail at times as to be all 

 but lost, is maintained, and is also made to include Anastrop/ius, 

 which certainly is as distinct from Paspalum as that genus is from 

 Panicum. 



Most of the species published by the writer in his recent 

 enumeration of the grasses of this same region * have been main- 

 tained in this work. In some instances, however, these have 

 been reduced to synonymy. As in one instance this is due ap- 

 parently to a misunderstanding of the species involved, I cannot 

 refrain from entering into it quite in detail. I refer to the reduc- 

 tion of my PaspaluJH Underwoodii to the synonymy of Paspalum 

 lentigitiosuvi Presl. It is difficult to understand how any one 

 who has read the original description of P. loitiginosuvi can come 

 to the conclusion maintained in the work under consideration, for 

 P. Underwoodii \s in no way related to that species. Presl's species 

 was described from material collected in Mexico, a country from 

 which I have not seen a specimen of Paspalum Underivoodii, 

 which, so far as I know, is confined to the West Indies. In the 

 tenth annual report of the Missouri Botanical Garden, in an article 

 by Professor Scribner on the grasses of Haenke in the Bernhardi 

 Herbarium, will be found a discussion of this species of Presl. 

 Among these Haenke specimens was one labeled in Presl's hand- 

 writing, Paspalum lentigi7iosum, and from this a drawing was 

 made, of which Plate 13 in the report referred to above is a re- 

 production. Professor Scribner states that Palmer's no. 1556, 

 collected at Culiacan, Mexico, in 1891, is the same as this, and 

 certain it is that this specimen agrees closely with Presl's descrip- 

 tion and with the plate referred to above. Ilacnke's American 

 specimens were from the Pacific coast, and Culiacan is on the west 

 coast of Mexico. Paspalum hn/igiuosum Presl is clearly related 

 to, if not identical with, /. hcmisphacricum Poir., a relationship 

 fully expressed in Urban's I^'lora by placing the two in juxtapo- 



* A |)reliminary Knumeration <»f the (jrasscs of I'orto Rico. Hull. Torrey Club, 

 30: 369-389. »oJl 1903. 



