Vol. III.] 



APPENDIX. 



499 



[Vol. I: p. 121.] 25b. Panicum Colum- 



bianum Scribii. American Panic-grass. 



Short-leaved Panicum. (Fig. 267b.) 



Panictitn Columbianum Scribn. Bull. U. S. Dept. 

 Agric. Div. Agrost. 7: 78. 1897. 



Culms tufted, erect, ioflly pubescent, 8'-2° tall, at 

 length (lichototnously branched, the branches erect. 

 Lower sheaths pubescent, the upper glabrous, the 

 primary one-half as long as the internodes; ligule 

 a ring of short hairs; leaves lanceolate, erect, thick- 

 ish and firm, glabrous above, the lower ones more 

 or less pubescent beneath, the primary lYz'-iYt,' 

 long, 2"-2," wide, those on the branches smaller; 

 panicle small, ovate, I'-ili' long, its branches as- 

 cending; spikelets broadly obovate, a little more 

 than V" long, the outer 3 scales densely pubescent 

 with spreading hairs, the first scale about one-half 

 as long as the spikclet, i-nerved, the second and 

 third scales 7-ncrved. 



Fields and open woods, Massachusetts to North 

 Carolina, west to Tennessee and Alabama. June-Sept. 



[Vol. I: p. 121.] 25c. Panicum Eatoni 

 Nash. Eaton's Panicum. (Fig. 2670.)] .1 



Panicum Eatoni Nash, Bull. Torr. Club, 25: 84. 1898 

 Smooth and glabrous. Culms iJ2°-3J^° tall, 

 erect, at length dichotomously branched and 

 swollen at the nodes; sheaths much shorter than 

 the internodes, usually more or less ciliate on the. 

 margins; ligule a ring of long hairs; leaves erect, 

 lanceolate, acuminate, I'/z'-^' long, l%"-5" wide; 

 panicle finally long-exserted, demise and contracted, 

 Z'~$' long, 1]^' or less broad, its branches erect-as- 

 cending ; spikelets oval, about i(" long, acutish, 

 the first scale about one-third as long as the spike- 

 let, pubescent, i-nerved, the second and third scales 

 broadly oval when spread out, 7-nerved, densely 

 pubescent with spreading hairs. 



Along the coast, in damp or wet places, Maine to 

 New York. May-Aug. 



[Vol. I: p. T2I.] 25d. Panicum tsugetorum 

 Nash. Hemlock Panicum. (Fig. 257d.) 



P. tsugetorum Nash, Bull. Torr. Club, 25: 86. 1898. 



Culms and sheaths pubescent with short oppressed 

 or ascending hairs intermixed toward the base with 

 longer ones. Culms tufted, i|^° or less tall, somewhat 

 slender, at length much branched and decumbetit or 

 prostrate ; sheath shorter than the internodes; ligule 

 a ring of hairs about yi" long; leaves erect or ascend- 

 ing, firm, lanceolate, 5-7-nerved, minutely appresscd- 

 pubescent beneath, smooth and glabrous above, or the 

 upper primary leaves sometimes with a few long erect 

 hairs, the primary leaves i/i'-^ long, 2>^"-4" wide, 

 those on the branches smaller and partly concealing the 

 small panicles; primary panicles broadly ovate, lyi'- 

 2^2' long, the branches spreading-ascending; spikelets 

 broadly obovate, about y'n" long, the outer 3 scales 

 pubescent, with short spreading hairs, the first scale 

 1-3-uerved, the second and third scales 7-9-nerved. 



Dry soil in lieinlock woods, Connecticut and New York. 



