GEAMINEJE. (GRASS FAMILY.) 545 



low the pointless apex. Stamen one, opposite the 1-nerved upper palea ! Grain 

 linear-oblong, free. — A perennial, rather sweet-scented grass, with simple and 

 upright somewhat reed-like culms (2° - 7° high), bearing a large compound ter- 

 minal panicle, its branches in fours or fives, broadly linear-lanceolate flat leaves 

 (i'-i' wide), and conspicuous ligules. Spikelets green, often purplish-tinged. 

 (Name unexplained.) 



1. C arundin^cea, L. — Moist woods and shaded swamps; rather 

 common, both northward and southward. July, Aug. — Panicle 6' -15' long, 

 rather dense ; the branches and pedicels spreading in flower, afterwards erect. 

 Spikelets 2^" -3" long. Awn of the palea either obsolete or exserted. 



Var. pendula. Panicle loose and more slender, the branches nearly 

 capillary and drooping in flower ; pedicels very rough ; glumes and palote more 

 membranaceous, the former less unequal; spikelets lJ^''-2" long; upper palea 

 obtuse. (C. pendula, Trin. C. latifolia, Griseb. C. expansa, lank. Blyttia 

 suav^olens. Fries.) — Deep damp woods, N. New York to Lake Superior and 

 northward', and on mountains southward. — A northern, more delicate state of 

 the last, as is shown by intermediate specimens. (Upper palea as long as the 

 lower, but shorter, as figured in Anders. Gram. Scand., only not with 3 stamens, 

 but monandrous, both in Americaikspecimens and in Norwegian, given in Fries, 

 Serb. Norm.) (Eu.) 



10. jnCUIIIiEIVBlGROIA, Schreber. Dbof-seed Gkass. 



Spikelets 1 -flowered, in contracted or rarely open panicles. Glumes mostly 

 acute or bristle-pointed, persistent ; the lower rather smaller or minute. Flower 

 Tery short-stalked or sessile in the glumes ; the palese usually hairy-bearded at 

 the base, herbaceous, deciduous with the enclosed grain, often equal ; the lower 

 3-nerved, mucronate or awned at the apex. Stamens 3. (Dedicated to the 

 Beo. Dr. Muhlenberg, a distinguished American botanist.) 



f 1. MUHLENBEKGIA Propee. — Panicles contracted or glomerate, terminal 

 and axillary: perennials {in our species) with branching rigid culms, from scaly 

 creeping rootstocks : leaves short and narrow. 

 * Lower palea bardy mucronate or sharp-pointed. (Sp. of Cinna, Kunth, Trin.) 



1. M. SOtoOlifera. Culms ascending (l°-2°high), sparingly branched; 

 the simple contracted panicle very slender or filiform ; glumes barely pointed, almost 

 equal, J shorter than the equal palece ; lower palea abi-uptly short-mncronate. 

 ( Agrostis sobolifera, Muhl.) — Open rocky woods, Vermont to Michigan, Illi- 

 nois, and southward. Aug. — Spikelets less than 1" long. 



2. M. gflomerata, Trin. Culms upright (l°-2° high), sparingly 

 branched or simple ; panicle oblong-linear, contracted into an interrupted glomerate 

 spike, long-pednncled, the branches sessile ; glumes awned, nearly equal, and 

 (with the bristle-like awn) about twice the length of the unequal very acute 

 palesB. (Agr. racemosa, Michx. A. setosa, Muhl. Polypogon racemosus, Nult.) 

 Bogs, &c. ; common, especially northward. Aug. — Panicle 2' -3' long. 



3. M. Mexicana, Trin. Culms ascending, much branched (2° -3° 

 hiffh) ■ panicles lateral and terminal, often included at the base, contracted, the 



46* 



