20 BOTANICAL GAZETTE. 



secund, oblong-ovate, acutisli; upper glume 5-nerve(l; sterile flower triandrous; rachis 

 sparsely hairy. — New Orleans, {Dr. Hale). 



Panicum itinplectens, n. sp. Very glabrous; culm slender, erect, the nodes black ; 

 leaves long, linear, with setaceous tips; panicle peduncled (0 10 inches long), erect, the 

 scattered brandies single, racemose-compound ; spikelets oblong-ovate, acute ; glumes 

 strongly 5-7-nerved, the lower one orbicular or reniform, clasping, }^ as long as the 

 upper one; sterile liower neutral. — South Florida. — Allied to P. maximum and P. mr- 

 <li(tum. 



Ceiichnis africtuti, n. sp. Glabrous; culm strict, erect, simple, or at length sparing]}^ 

 l)ranched (2-0 feet high); leaves numerous, linear, conduplicate, the lower sheaths 

 dilated and longer than the internodes; spike cylindrical, many-flowered ; involucre 

 cuncale and naked at the base, the 10 or 11 stout spines ciliate, longer than the 2 acute 

 smooth spikelets; sterile flower triandrous. — West coast of Florida, Apalachicola and 

 Soutliward. 



AnCropoc/on nrctatus, n sp. Culms tall (2-5 feet high), single, compressed, the erect 

 branches forming a long simple panicle; leaves distant, linear, shaggy with long, 

 mostly deciduous, hairs, as are also the sheaths; spikes by pairs, exscrted, narrow (1- 

 11-^ inches long), rather rigid, closely 15-20-flowcred ; glumes rough, twice as long as 

 the stout joints, and ^4, the length of the short bent awn; pedicel of the neutral flower 

 tipped with 2 slender glume?; hairs of the involucre few and short; stamen 1. (A. 

 tetrastachyus, var. dutadii/m, S. Flora). — Low pine barrens. West Florida. 



Sorr/hnm jxnicifiorum, n. sp. Annual ; culms branching near the base (2-3 feet high) ; 

 leaves broadly linear, flat, ciliate; flowers few (6-12), in a simple raceme, the very long 

 (2-3 inches) setaceous petlicels in whorls of 2-G, rough, spreading; glumes equal, linear, 

 rigid, convolute, scabrous at the apex, the lower one 2-toothed, the upper one truncate; 

 awn very long (0-6 inches), geniculate, twisted and tortuous below the middle; sterile 

 flowers citlier triandrous, linear, acute, perfect, but the short style abortive, or reduced 

 to 2 setaceous spirally twisted pedicels. — ISandy pine barrens, near Jacksonville, East 

 Florida. — This is unlike our other species, and has the aspect of a Stipa. 



Tmpenita, Cyr. V sp. Culm erect from a creeping base (2-3 feet high), simjile; low- 

 est leaves crowded, lanceolate, flat, the tliroat and sheaths more or less hairy, the upper 

 ones small and remote; panicle long peduncled, loosely racemose (3-4 inches long), 

 white from the copious wool of the flowers, the lower branches distinct, the upi)er ones 

 crowded; spikelets small, all alternate and short-pedicelled, deciduous; glumes linear, 

 villous with long silky spreading hairs, gi'ain free. — Banks of the Caloosa River, South 

 Forida. — The specimens are in fruit, and all the flowers detached; and it is uncertain 

 whether they belong to IvrpcrnUi or tidcflinrnm, or to either of tliem. 



Aypidium nuitum, var. glalrtirn, Mettenius. Fern 2-4 feet high, from a long slender 

 black rootstock, nearly glabrous; frond ovate-lanceolate, (li^-2 feet long), pinnate, 

 l)inniT rather rigid, lanceolate, serrately lobed, the lower ones often sterile; fruit-dots 

 contiguous, forming a continuous zigzag intramarginal line. — South Florida, in boggy 

 places. 



Ophi'/gloHsuDi pulmaluni, Plumier. Fern epiphytic, thick, succulent, drooping, 

 4-10 inches long, from ii tuberous woolly rootstock; frond stipitate, cuneaie at base, sim- 

 ple, or palmately 2-G-lobed, the lobes tongue-shaped, larely forking, reticulate- veined ; 

 spikes 1 — several at the summit of the stipe, or along the basal margins of the frond 

 (1 inch long), peduncled. — In the axils of the leaves of the Palmetto, banks of the Ca- 

 loosa River, South Florida. 



Lyciipodiuia inundatum, L.,va,\:. appresnum. Size and habit of var. ^jm?;rt^;?«, but 

 leaves thinner, all entire, those of the spike, which is scarcely thicker than its ]iedun- 

 cle, closely appres.sed. — Banks of the Caloosa River (November,) and Duval County, 

 CuiiiiiH). 



