



THE IDENTIFICATION OF WALTER S GRASSES. 



41 



Seems to refer to the common Pbalaris of that region, 

 P. intermedia Bosc, but in this the flowering glume is 

 not awned as stated by Walter. 



34. Paspalum. Cal. 2-valvis, aequalis, suborbiculatus. 



Corolla ejusdem figurae. Stigmata peni- 

 cilliformia. 



No specimens of Paspalum are in the herbarium. 



dissectum 1. spicis secundis axillaribus et tenninalibus, [P. 75] 



rachi 



membranacea, floribus alternis ; 



foliis et caule pilosis. 



Elliott suggests that this may be P. debile Michx., 

 while Pursh refers it to P. setaceum Michx. Walter's 

 statement that the spikes are axillary and terminal would 

 place this in the setaceum group, the different species of 

 which were probably not distinguished. The leaves and 

 stems are described as pilose, which applies better to P. 

 debile Michx., or some one of the more recent pubescent 



setaceum, than to the true P. 

 setaceum, which is sparingly pilose. I have not exam- 

 ined the specimens in Michaux's herbarium critically, 

 but his P. setaceum is sparingly pilose and P. debile 

 quite woolly as to leaves and sheaths. Walter does not 

 use Linnaeus' description of P. dissectum. 



segregates from P. 



membrana- culmo ramoso longissime procumbente ; spica 

 ceum 2. composita spiculis 6 s. 7 alternis laevibus 



secundis, floribus duorum ordinum; recep- 

 taculo membranaceo lato flores subvolventi. 





gested 



Elliott sug- 

 that this might be his Ceresia Jluitans (Pas- 



Now recognized under the above name. 



palum Jluitans Kunth), which has numerous spikes 



