1886.] NATURAL SCIENCES OP PHILADELPHIA. 285 



3. P. ciliatifolium, Miehx. 



As above stated, the ticket for this is in the same sheet with 

 the preceding, and if it has not been changed, must apply to the 

 same plant, as the description does not at all apply to the smooth 

 long-leaved specimen of P. ciliatifolium from Georgia. Some of 

 the specimens have " spica unica," and some have " spicis 1 sive 

 2," and some with the usual lateral peduncled ones. 



4. P. longepedunculatum, Le Conte. 



The specimen to which this name is attached is commonly 

 referred to P. setaceum, Michx., but is a difterent form from Nos. 

 2 and 3, more like the southern P. ciliatifolium^ but having the 

 leaves shorter and narrower. There are several long peduncled 

 lateral spikes which are not mentioned in the description, the 

 name being based on the " very long peduncled common spike." 

 In Herb. Scribner is a specimen, collected by Mi\ Isaac Burk, on 

 the ballast grounds of Philadelphia, which is almost exactly like 

 the Le Contean one, and if P. ciliatifolium is considered a species 

 this might be called variety brevifolia. At the close of his de- 

 scription Le Conte says " P. debile, Muhl. Gram." 



5. P. Floridanum, Michx. 



There are two tickets with this name, one of which is attached 

 to a specimen of P. racemulosum, Nutt., which specimen does not 

 agree with Le Conte's description ; the other is attached to a 

 much smaller plant, very well answering the description of Le 

 Conte but not of Michaux. The specimen is not different appar- 

 ently from the one to which Le Conte's ticket " P. prsecox " is 

 attached, which we take to be Paspalum Iseve, Michx., the short 

 broad-leaved form which is perhaps the typical one. 



In Herb. Torrey is a specimen of Paspalum Floridanum with a 

 note, "not of Le Conte, which is P. Iseve. Ell. i, p. 106, non 

 Michx. ? " We see from this note not only that Dr. Torrey 

 referred Le Conte's P. Floridanum to P. Iseve, Ell., but also that 

 he had doubt if Elliott's plant was the same as Michaux's. 



6. P. laeve, Michx. 



Le Conte's ticket with this name is loose in a sheet with the 

 preceding, the three specimens being apparently all alike except 

 as to the pubescence of the leaves. There is also in another sheet 

 a specimen with the ticket attached, which specimen is the form 



