Bulletin - United States National Museum - Smithsonian Institution

FLORA OF WASHINGTON AND VICINITY. 131
Alopecurus geniculatus, L., var. aristulatus, Steud. Synopsis Plantarum glumacearum,
147, 5. [J. aristulatus, Michx.] Wild Foxtail Grass.
\Phleuxa pratensejli. Timothy. Herd's-Grass (of New England).
June.
Vilfa aspera, Beanv. Eush-Grass.
Little Falls (Dr. Vasey, 1874).
Agrostis perennans, Tuckerm. Thin Grass.
August, September.
Agrostis scabra, Wilkl. Hair-Grass.
Last of May or first of June.
Agrostis vulgaris, With. Red-top. Herd's-Grass (of PennBylvania).
Middle of June to middle of July.
Agrostis alba, L. FiORiN. White Bent-Grass.
Last of Juno and through July.
Cinua arundinacea, L. Wood Reed-Grass.
August, September.
Muhlenbergia sobolifera, Trin. Drop-seed Grass.
Rock J' Woods, not rare (Dr. Vasey).
Muhlenbergia Mexicana, Trin.
September.
Muhlenbergia sylvatica, Torr. & Gray.
September.
Muhlenbergia "Wllldenovii, Trin.
July, August.
Muhlenbergia diffusa, Schreb. Nimble-Will.
Sejitember.
Muhlenbergia capillaris, Kunth. Hair-Grass.
Once found, September 26, 1875, at Great Falls ;
Brachyelytrum aristatum, Beauv.
Last of July or first of August.
Calamagrostis Nuttalliana, Steud. Reed Bent-Grass.
First half of September.
Stipa avenacea, L. Black Oat-Grass.
Last of May or first of June.
not seen since.
Aristida dichotoma, Michx. Triple-awned Grass. Poverty-GraSS.
Sandy places (l^r. Vasey).
t Aristida gracilis. Ell.
Last of September or first of October.
Aristida oligantha, Michx.
Last of September.
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