. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 184 GRAMINEAE. Vol. I. 34. MUHLENBERGIA Schreb.; Gmel. Syst. Nat. 2: 171. 1791. [Vaseya Thurb. Proc. Acad. Phila. 1863: 79. 1863.] Mostly perennial grasses, with fiat or convolute leaves and paniculate inflorescence. Robtstocks often scaly. Spikelets i-flowered, very rarely 2-flowered. Scales 3, very rarely 4; the outer ones empty, membranous or hyaline, acute
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 184 GRAMINEAE. Vol. I. 34. MUHLENBERGIA Schreb.; Gmel. Syst. Nat. 2: 171. 1791. [Vaseya Thurb. Proc. Acad. Phila. 1863: 79. 1863.] Mostly perennial grasses, with fiat or convolute leaves and paniculate inflorescence. Robtstocks often scaly. Spikelets i-flowered, very rarely 2-flowered. Scales 3, very rarely 4; the outer ones empty, membranous or hyaline, acute and sometimes awned; third scale 3-5-nerved, subtending a palet and perfect flower, obtuse, acute, or very often produced into a capillary awn; palet 2-keeled. Stamens often 3. Styles distinct. Stigmas plumose. Callus minute. Grain narrow, free, tightly enclosed in the scale. [In honor of Henry Muhlenberg, 1756-1817, North American botanist.] About 60 species, chiefly natives of America, a few Asiatic. Type species: Muhlenbergia Schreberi Gmel. Panicle contracted, narrow, often slender, its branches erect or appressed. Outer scales 54 as long as the flowering scale or less. First scale minute, often wanting; flowering scale with an awn twice its length or less. i. M. Schreberi. First scale about */$ as long as the second; flowering scale with an awn 3-4 times its length. 2. M. palustris. Outer scales more than l/i as long as the flowering scale. Plants with numerous and conspicuous rootstocks covered with short appressed scales. Flowering scale awnless, or sometimes awn-pointed. Outer scales ovate to broadly lanceolate, cuspidate, about $4 as long as the flowering scale. 3. M. sobolifera. Outer scales subulate, equalling or exceeding the flowering scale, awn-pointed*or awned. Outer scales about equal in length to the flowering scale, about i'A" long, sharp- pointed. 4. M. mexicana. Outer scales exceeding the flowering scale, generally twice its length, about 2x/2" lon
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
