148 TRIANDRIA. DIGYNIA. panicum. 



pyramidal, often subsecund ; spikelets appressed to the bran- 

 ches. Abortive Jloret 2-valved ; inferior valve and the glumes 

 so much acuminate as to appear rostrate. 

 Hab. Iti fields. Pennsylvania. July — August. Muhlen ber g. 

 My specimens are from the Southern States. 



17. P. rectum R. fy S. : panicle solitary, shorter than the 

 terminal leaf ; branches simple, flexuous ; spikelets alternate, 

 peduncled, obevate, turgid ; glumes striate, acute ; leaves 

 linear straight, tapering to a sharp point, striate and scabrous 

 above, hairy beneath; sheaths with .very long hairs. Roem. 

 ^ Schul L II. p. 457. P. strictum RuJish FL I. p. 69. 



Hab. On the banks of the Delaware, Pennsylvania. July. 

 Purs/i. 



■ With this species I am unacquainted. The name has been 

 changed by R. ^ 5. because R. Brown had previously 

 described a P. s trie t uth irom -New Hollaiid. 



18. P. verrucosum Muhl. : culm slender, decumbent and 

 geniculate, branched below, and with the leaves smooth; 

 panicle much spreading, few-flovvcred ;,. flowers vertucose ; 

 abortive floret 1-valved. Muhl. Gram. p. il3. P. debile 

 Elliott Sk, I. p. 129. ' ••■ 



Root perennial, fibrous. *Cu/?n about a foQt and a half long, very 

 slender, much branched from the base ; -nodes smooth. Leaves 

 linear, bright green, about 3 inches. long, spreading. Sheaths 

 much shorter than the joints, smooth. Panicles lateral and 

 terminal, loose, capillary ; branches a little flexuous, 2-floWered 

 at the extremities. 5/zfXre^e^s appressedj ovate. Inferior ^-/wme 

 very short, rather acute; superior glume roughened by little 

 warts, not " pubescent, dark green, jiborlive jloret neuter, 

 resembling the superior glume. Perfect Jloref^ finely striate, 

 opake. Stamens 3. Styles ''i: ., . •..■■.■..■ 



Hab. In swamps among shrubbery. Comrotton, about Islip, 

 Long-Island. Near Long-branch, New-Jersey Cooler. 

 August. 



A remarkable species, and easily distinguished by its verru- 

 cose flowers. It is allied to P. ramulosutn oi jyli.c'/iauxj 

 but distinct. ' •.' ' 



1 9. proliferum L a m. : culm assurgent geniculette at base, 

 very smooth; panicles terminal and axillary, smooth.; spikelets 



^racemose; abortive floret 1-valved. Lam. Enc. IV. p. 747. 

 ' Pursh Fl. l.p. 68. Ro_em:^ Schnlt. 11. p. 431. P. 



dichotomijlorum M i c h. FL I. p. 48. P..genicuititum Muhl. 



Gram. p. 123. E I li o 1 1 Sk. I. ip. 117.- P. miliaceum Walt. 



Car. p. 72. 



Root annual. Whole plant very smooth. -.Culm 2-4 feet long, 

 thick and succulent. Leaves a foot or more long, and about 

 half an inch broad, flat. Sheaths swelling, hairy at the throat. 

 Panicles large and pyramidal ; branches straight, scabrous. 



