42 



no locality, A. W. Chapman; Bay Head, 636 R. Combs, August, 1898; Chipley, 

 594 R. Combs, August, 1898; De Funiak Springs, 471 R. Com))S, August, 1898; 

 Jacksonville, 149 T. H. Kearney, jr., July, 1895; Marianna, 3669 S. M. Tracy, 

 August, 1897; Monticello, 343 R. Combs, August, 1898. Georgia: Thomasville, 

 3671 S. M. Tracy, August, 1897. Alabama: no locality, 333 A. Winchell; Mobile, 

 C. Mohr. Mississlpi)i: Bay St. Louis, 21 A. B. Langlois, September, 1883; Biloxi, 

 3743 S. M. Tracy, September, 1897; Nicholson, 345 T. H. Kearney, jr., 1896; Ocean 

 Springs, 23 S. M. Tracy, August, 1889; 289 T. H. Kearney, jr., October, 1896; 



Waynesboro, 143 T. H. 

 Kearney, jr., October, 

 1896. Louisiana: Alexan- 

 dria, 171 C. R. Ball, Sep- 

 tember, 1898. 

 PASPALUM PASPA- 

 LOIDES VILLOSUM 

 (Vasey) n. comb. (P. 

 furcatum villosum Vasey, 

 Contr. U. S.Nat. Herb. 3: 

 16 (1892).) 

 PANICUM COMBSII sp. 



nov. ( Fig. 16. ) 

 A slender, rather densely 

 caespitose, erect perennial 

 3 to 6 dm. high, from 

 short, creeping root-stocks, 

 with linear flat leaves and 

 spreading, nearly simple, 

 few-flowered panicles 8 to 

 15 cm. long. Culms some- 

 what compressed below, 

 glabrous or minutely pu- 

 berulent just below the 

 nodes; sheaths more or 

 less compressed, glabrous; 

 ligule very short, ciliate; 

 leaves of the culm 10 to 20 

 cm. long, 3 to 5 mm. wide, 

 very acute, minutely ser- 

 rulate-scabrous on the 

 margins, otherwise 

 smooth. Panicle branches 

 more or less spreading, 

 usually solitary, the lower 

 5 to 7 cm. long; pedicels 

 as long as or shorter than 

 the spikelets, rarely exceeding them, appressed. Spikelets lanceolate acute, 

 3 mm. long; first glume broadly lanceolate, acute, 3-nerved, scabrous on the 

 midnerve toward the apex, two-thirds to three-fourths the length of the spikelet; 

 second glume as long as the third glume, 5-nerved, nerves scabrous above; 

 third glume 3 or imperfectly 5-nerved, the marginal nerves faint, indistinctly 

 acuminate-pointed, subacute with a hyaline palea nearly three-fourths its length; 

 flowering glume about 2 mm. long, iiuich shorter than the second and third 

 glumes, narrowly oblong, obtuse, with a few short hairs at the apex; palea sca- 

 brous on the keels. 



Fig. 16.— PawicMmcombsiiScribn.&Ball: a, spikelet; /;, second 

 glume; c, d, flowering glumes. 



