. 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. 3. Muhlenbergia sobolifera (Muhl.) Trin. Rock Dropseed. Fig. Agrostis sobolifera Muhl.; Willd. Enum. 95. 1809. Muhlenbergia sobolifera Trin. Unifl. 189. 1824. Glabrous, culms 2°-3° tall, erect, slender, simple, or sparingly branched above, smooth. Sheaths smooth, those of the culm shorter than the inter- nodes, those of the branches overlapping and crowde


. 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. 3. Muhlenbergia sobolifera (Muhl.) Trin. Rock Dropseed. Fig. Agrostis sobolifera Muhl.; Willd. Enum. 95. 1809. Muhlenbergia sobolifera Trin. Unifl. 189. 1824. Glabrous, culms 2°-3° tall, erect, slender, simple, or sparingly branched above, smooth. Sheaths smooth, those of the culm shorter than the inter- nodes, those of the branches overlapping and crowded; ligule very short, truncate; blades rough, those of the culm 4'-6' long, 1 J"—3" wide, those of the branches i'-j,' long, about 1" wide; panicle 3'-6' in length, slender, its branches l'-i' long; outer scales about J" long, half to two-thirds the length of the spikelet, equal, or the lower somewhat shorter, acute, scabrous, especially on the keel; third scale scabrous, obtuse, 3-nerved, the middle nerve usually excurrent as a short point. Rocky woods, New Hampshire to Minnesota, south to Virginia, Tennessee and the Indian Territory. Oct. 4. Muhlenbergia mexicana (L.) Trin. Satin-grass. Wood-grass. Fig. 442 Agrostis mexicana L. Mant. 1: 31. 1767. Agrostis filiformis Willd. Enum. 95. 1809. Muhlenbergia mexicana Trin. Unifl. 189. 1824. M. foliosa Trin. Gram. Unifl. 190. 1824. Glabrous, culms 2°-4° long, erect, or often prostrate, much branched, smooth. Sheaths shorter than the' internodes, excepting at the extremities of the branches, where they are crowded and overlapping, smooth or scabrous; blades scabrous, those of the culm 4'-6' long, i"-3" wide, the branch leaves smaller; panicle 2'-6' long, contracted, its branches spike-like, i'-z' long, erect or appressed; spikelets ii"-ii" long; outer scales some- what unequal, exceeding the flowering one, or slightly shorter, acuminate or short-awned, scabrous especially on the kee


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913