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Bulletin - United States National Museum - Smithsonian Institution

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134 FLORA OF WASHINGTON AND VICINITY.<br />

Bromus ciliatus, L., var. purgans, Gray.<br />

June.<br />

Bromus sienlis, L.<br />

Anacostia Road above Uuiontown, rare. Collected only July 8, 1877, then rather<br />

advanced.<br />

tUniola latifolia, Michx. Spike-Grass.<br />

Bluffs of the Potomac. Last of July or in August.<br />

Uniola gracilis, Michx.<br />

Reform School. Last of July or first of August.<br />

tLoliumjJCJ-enjje, L. Darnel. Ray-Grass. Rye-Grass.<br />

Last of May or iirst of June.<br />

Triticum repens, L. Couch-Grass. Quitch-Grass. Quick-Grass.<br />

Last of May.<br />

Elymus Virginicus, L. Lyme-Grass. Wild Rye.<br />

July, August.<br />

Elymus Canadensis, L.<br />

August, September.<br />

Elymus striatus, Willd.<br />

First of July. ,<br />

Elymus striatus, Willd., var. villosus, Gray.<br />

High Island. First half of July.<br />

Gymnostichum Hystrix, Schreb. Bottle-brush Grass.<br />

June.<br />

Danthonia spicata, Beauv. Wild Oat-Grass.<br />

Middle of May to Middle of June.<br />

tTrisetum palustre, Torr.<br />

Not common. Last half of May.<br />

Aira flexuosa, L. Common Hair-Grass.<br />

Often nearly a meter in height. Last of May.<br />

Aira caryophijllca, L.<br />

Common in the eastern districts. First half of May.<br />

Holcus lanatus, L. Velvet-Grass.<br />

June.<br />

t Anthoxanthum odoratum, L. Sweet Vernal Grass.<br />

First half of May.<br />

Phalaris Canariemis, L. Canary-Grass.<br />

Sparingly springing up from refuse heaps in the city. June, July.<br />

tPaspalum setaceum, Michx.<br />

August, September.<br />

Paspalum laeve, Michx.<br />

August.<br />

J

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