NATURAL SCIENCES OP PHILADELPHIA. 



and Fendler's 950, (not 946 as on the ticket in herbarium Acad.,) with the 

 usual omission to mention it. 



Uralepis (Tricuspis) brevicuspidata is Leptochloa dubia, Nees, Chloris 

 dubia, H.B.K. (767, Wright.) 



Uralepis (Tricuspis,) pilosa, described from Wright's specimens, No. 781, 

 the ticket of which bore the note " Tricuspis, n. sp." in Mr. Thurber's hand- 

 writing, is Tricuspis acuminata, Munro, in herb., mixed with one specimen of 

 T. avenacea, Thurber, (Triodia avenacea, H.B.K.) It is also Wright's 2058, 

 Fendler's 915, and Lindheimer's 738. 



Uralepis (Tricuspis) po a? o i de s, founded on Fendler's No. 932 (and duly 

 credited !) was long ago published, and the number cited as Eragrostis Fendleri- 

 ana, Steud., Glum., 1, p. 278; and it is Sclerochloa Californica, Munro, in PI. 

 Hartw. p. 342. 



Uralepis (Tricuspis) densiflora (same as Drummond's 274 and 278, 

 2d coll.) is Windsoria stricta, Nutt., therefore Tricuspis stricta. (No. 314 of Drum- 

 mond's same collection is T. albescens, Munro, ined.) 



Uralepis (Tricuspis) composita is a well-known large form of Leptochloa 

 fascicularis, Gray, Man. What is meant by " leaves at the joints of the culm 

 without sheaths and stems," we need not endeavor to make out. 



Uralepis (Tricuspis) p i losa, the second of the same name, is Trtcusjxx 

 mutica, Torr., in Pacific R. R. Surv., 4, p. 156, a large form, with hirsute 

 sheaths, better developed. The lower palea often bears a minute mucro. It 

 is described from one of Wright's specimens, in whose collection it is Nos. 779, 

 780 and 2046. 



Pleuraphis mu tic a. Upon this Professor Thurber remarks : " I think this 

 may be a good species. It differs from P. Jamesii (Fendl. 946) in the glumes 

 of the lateral spikelets, which are cuneate-obovate, 5-7-nerved, and do not 

 enclose the flowers, but form a sort of involucre, as in Elymus. Glumes of 

 the central spikelet 2-cleft, 5-nerved; the nerves confluent below, the middle 

 one produced as an awn, which is shorter than the lacerate-fringed laciniae. 

 Lower palea of the perfect flower muticous." It is Wright's 760 and 2108. 



Glyceria b u 1 b o s a. This is founded on a diminutive bit of stem and two 

 separate spikelets of NuttalPs, named by him " Bromus (Phrenachyris) muticus. 

 Upon the sheet Prof. Thurber had last year noted " Glyceria bulbosa, Thurb.," 

 a plant so named by him in the Botany of Wilkes' Expedition, yet unpublished. 

 Whereupon, Mr. Buckley furtively erases the " Thurb." and substitutes " Buckl." 

 If we mistake not, the species has been published under two names already, 

 viz., Melica potsoides, Nutt., in PI. Gamb., &c, and Melica bulbosa, Geyer, in 

 Hook. Kew. Jour. Bot. 8, p. 19. 



Glyceria stricta, if reckoned as a normally plurifiorous grass, is no Glyce- 

 ria, but would be ambiguous between Uniola and Brizopyrum. We have reason 

 to regard it, however, as an abnormal state of Vilfa Drummondii, Trin., which 

 is a form of V. aspera, Beauv. In this the paleae are often elongated in this 

 fashion, (but not nerved, as some of them are in Mr. Buckley's specimen,) and 

 the tendency to develope one or more additional flowers in the spikelet is not 

 rarely manifest. 



Glyceria leptostachya and G. microtheca are both alike, and both 

 Nuttall's MSS. names, which Mr. Buckley has appropriated in the coolest man- 

 ner writing " Buckl." after the name upon Nuttall's autograph tickets. They be- 

 long to a grass, common in Oregon and northward, which differs a little from G. 

 pallida of the Northern States, (in the rather broader and shorter florets and 

 shorter and more rounded glumes,) and which already has names enough, being 



1862.] 



