52 



direct attention to the plant, which I cannot but think exhibits a 

 pretty adaptation of means to ends. 



Fig. I represents a front view of the flower. Fig. 2 shows the 

 corolla laid open so as to display the filiform appendages a, and the 

 anthers b. Fig. 3 represents the androecium. Fig. 4 shows to the 

 left the gynoeciLim, and to the right the magnified stigma. 



Brown University, Providence, R. I. W. Whitman Bailey. 



o 

 Notes on Andropogon Jamesii, Torr.— Dr. Torrey described 



this grass m tlie" Annals of the New York Lyceum, Vol. i, 



1824, p. 153, from specimens obtained by James on the Canadian 



River, and named it A. glaucus. Muhlenberg having already given 



this name to another species, Dr. Torrey changed his glaucus to 



Jamem m Marcy's Report, 1852. Steudel, in his Synopsis Plantarum 



Graminearum, p. 392 (1855), probably not knowing of the second 



name given by Dr. Torrey, called it A. Torreyanus, under which name 



It has been distributed by American collectors- (No. 845 £ Hall 



Texan Plants, No. 3635* A. H. Curtiss's distribution N. Am Plants' 



and m the recent distribution of "Pacific Slope Plants" by Pringle.j 



T. S. Brandegee collected this grass at Canon City, Colorado, and it 



was called m Flora of Colorado," A. argenteus. Ell. 



In comparing my specimens with Grisebach's description of A. 

 saccharoides, Sw., there appear to be no essential points of difference 

 and as he (m Flora of the British West Indies) cites Arkansas and 

 New Mexico among the habitats of this species, the supposition is 

 li""^ w •"^^^^d.e^Jitl^ i^ our A. Jamesii, Torr. By the kindness of 

 Mr. Watson I have been enabled to compare the spikelets of the 

 A. saccharides, Sw., {fide Grisebach) with those of our A. Tamesii 

 or r^rro-a/w/i and the opinion that they were of one species seemed 

 to be confirmed. The only difference noted was that in the West 

 Indian _^.wrW^^^ the hairs on the rachis were a little shorter, 

 the fertile spikelet a little longer and the leaves pilose near the base 

 differences of no specific importance. In a lot of specimens of A. 

 Jamesii from 1 exas there was a considerable variation in the size cf 

 the panicle. It is well known that many species when growing in the 

 dry regions of the Southwest become highly glaucous when elsewhere 

 they are not at all so. 



Supposing our .4. /.^W/ to be the same as A. saccharoides, Sw., 

 and I believe that it is then Torrey's name must give place to that 

 of bwartz, and we would have: — 



.i Andropogon saccharoides,'^\\.,Y\ox, Ind. Occ i 20c (^iai\ 



^A. argenteus, D C. Cat. Monsp. 77 {testl Nee's) 



A. glaucus, Torrey in Ann. Lye. N. Y i n ic^ * i.9.oA\ 

 A. Jamesii, Torr. in Marcy's Report I'^i^J.^^' ^ ^^• 

 A. Torreyanus, Steud. Syn. Gram., p. 302 (igrr 

 Description :-CuIms^ simple or branched and "geniculate below 



rcrorTpX^ed^rr^'S:!;"' ^^ f "-^-espulescttwitlitiff; 

 erect or appressed hairs, sheaths smooth, shorter than the internodes' 



igule obtuse, a me long. Leaves smooth or pilose near the base ,6 



inches long, 1-3 Imes wide, ^vlth very accuminate-pointed and mfnutelv 



scabrous tips-the upper leaf very'narrow and u^sually less t^an oJe 



