43 



PANICUM IMPLICATUM Scribn., sp. n. (Fig. 2.) 



A weak, slender, hairy species. 3 to 5 dm. high, with rather short, mostly ereet leaves 



and dift'iisely branching pyramidal panicles, 3 to 5 cm. long, ("ulms pilose with 



soft spreading hairs, with a glabrous ring just below the bearded nodes, soon 



becoming much branched. 8heaths pilose, bearded at the throat. Leaf- blades 



lanceolate, pilose on both surfaces, 3 to 5 cm. long. 3 to (i mm. broad, acute. Axis 



of the panicle, excepting near the apex, pilose; br.'incbes s])roading, very flexn- 



ons, and usually pilose near the base, otherwise glabrous. S])ikelets obovate or 



oblong, obtuse, about 1.5 mm. long. First 



glume minute, hardly one fourth as long 



as the spikelet; second and third glumes 



aboutequal, minutelypubescent, 7-nerved. 



The third glume with a small palea. 



Flowering glume smooth and shining, 



about the length of the third glume. 



Distinguished from /'. ailanlienm by its 



more llexuose panicle-branches and smaller 



spikelets. 

 Low marshy ground. Cape Flizabeth, Maine. 



Collected by F. Lamson-Scribnei-, July 



26, 1895. 

 This grass was found growing in patches of 



considerable extent upon marshy laud 



near the seashore. Its reddish or purplish 



spikelets, panicle-branches, and upper leaf 



sheaths rendered these patches conspicuous 



by their color. The delicate and liexuous 



panicle-branches cause the neighboi-ing 



panicles to become so entangled that indi- 

 vidual specimens are separated with ditli- 



culty. 



PANICUM BALDWINIL Nutt. in herb. 

 l^Fig. 3.) (Panicnm dicliotomum var. «!//- 

 dnm Chapman, Southern Flora, first edi- 

 tion. Panieum nitidum var. minor Vasey 

 Contrib. fnmi National Herbarium 3: 

 liage 30. Panicnm rnmulosum Chapman, 

 Southern Flora, Supplement, not Michx.) 



A slender and densely ca'spitose, glabrous 

 perennial 1 to 3 dm. high, much branched 

 near the base, with short, narrow, and 

 more or less spreading leaves, ovoid or 



pyramidal panicles, 2 to 4 cm. long, and c three views of tlio spiki-lot: rf, tliinljilmue 

 minute spikelets. Sheaths mncli shorter sbowinir smnll jialea; <■, <1or.sal view of the 

 than tlie iuternodes, excepting the loose fioweriuji- 

 basal ones, overlapping margins usually 

 ciliate. Ligule a short, dense fringe of hairs. Leaf-blades 1..5 to 5 cm. long, 1 to 

 4 mm. wide, very acute, glabrous, minutely scabrous on the margins, often with 

 a few long, marginal hairs near the base Panicle-branches capillary, liexu- 

 ous, sparingly and minutely scabrous. Spikelets glabrous, ovoid or pyriCorm, 

 obtuse, about 1 mm. long. First glume rarely more tliau one fourth as bmg as 

 the spikelet, obtuse. The second and tlie third iilumes about e(|nal, faintly 

 nerved. Flowering glume and palea rounded-obtuse, about the length of the 

 second and third glumes. 



Fig. 2. — Panicnm implicatum Scribn. ; n, ft, 

 |)il< 

 ('. 

 or friiitiiijr, glume : /, anterior 

 view of flowering glume, sliowing i)alea. 



