146 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
appears ‘to be described in Small’s Flora as 2. altissimum Le Conte. P. floridanum 
as described in Small’s Flora is a taller plant, with hirsute sheaths and longer spikes. 
It may be that these should be considered extreme forms of one species. 
Paspalum plicatulum Michx. 
“In Georgia, Florida.’’ The specimen belongs to the species commonly so called, 
Digitaria sanguinalis [Scop.] 
“A Pensylvania ad Caroliniam [sign for annual]. Syntherisma precox Walt.’ 
This is Syntherisma sanguinalis (L.) Dulac. (Panicum sanguinale L.) Michaux 
cites no authority for his combination. It is to be noted that in his Flora he states 
under habitat: “in cultis [sign for annual]: in Florida maritima [sign for perennial].’’ 
Digitaria pilosa Michx. 
“In sabulosis Carolina, Georgia [sign for perennial].”” This plant corresponds to 
the description, and the habitat is similar to that given in the book. The plant is 
Syntherisma filiformis (L.) Nash. (Panicum filiforme 1.) A second sheet is referred 
to below under Digitaria serotina. 
Digitaria paspalodes Michx. 
“In pascuis aridis Carolinae.”’ The specimen is Paspalum distichum 1. The 
spikelets are pubescent. 
Scribner,@ misunderstanding this species, transferred the name. to Paspalum as 2. 
paspaloides (Michx.) Scribn., giving P. elliottii 8. Wats. (which is Paspalus furcatus 
Fligge) as synonym. Nash > with the same conception of the species transferred the 
name to Anastrophus as A. paspaloides (Michx.) Nash, but described P. furcatus 
Fliigge under it. P. furcatus Fliigge becomes Avonopus furcalus (Fliigge) Hitehe. ¢ 
Digitaria serotina Michx. 
There is no sheet thus labeled, but the plant evidently referred to here is in the 
herbarium accompanied by a label ‘ Digitaria pilosa. Hab. in Carolina, Georgia. 
Syntherisma serotina Walt.’’ (Compare note under D. pilosa.) This specimen 
belongs to the species described in Small’s Flora as Syntherisma serotina, 
Panicum glaucum L. 
Michaux appends to his description the sign for an annual, but all the specimens 
in his herbarium are Chaetochloa imberbis (Poir.) Seribn., a perennial species common 
in the Southern States. 
Panicum crus galli LL. 
“Ad ripas rivorum Virginiae, Carolinae.”’ This is the tall form with somewhat 
hirsute sheaths and long awns, now called ** Echinochloa walteri (Pursh) Nash.’ 
Panicum muricatum Michx. 
“Lac, Champlain.” This specimen which is the type is Hehinochloa crus-galli (1..) 
Beauv. A second specimen of the same is labeled, “in Canada, Connecticut [sign for 
annual].”? Both have rather short awns, and small panicles like the introduced form. 
Michaux distinguished this from the last, but applied Linnieus’s name to the wrong 
species. Michaux’s specimen is also the type of Panicum pungens Poir.d 
Panicum hirtellum I.. 
“In umbrosis sylvarum a Carolina maritima ad Floridam.’’ The specimen. is 
Oplismenus setarius (Lam.) Roem, & Schult. as described in Small’s Flora. 
Panicum molle Michx. 
“In sabulosis maritimis Mlorida.’’ A second label, with diagnosis, reads ‘* Lieux 
tres humides a 15 miles de St. Augustin.’”” The specimen is Eriochloa mollis (Michx.) 
@ Mem. Torr, Club 5: 29. 1894. © Rhodora 8: 205. 1906. 
6 In Britton, Man. 75. 1901. @ Eneycl. Suppl. 4: 273. 1816, 
