Field notebook, 1940-1943
Page 27
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Transcription
22 Send east I McKinville Utricularia gibba, apparently not pre- viously known from Tennessee. The Potomacum from Stone River is G. foliosa, common in Calaveras area, especially in the middle States. Also Glyceia corylaria from McKinville. Pinus schiatae from near Wrigley, Hickman Co. Feb. 12 (Wednesday) Holiday; worked on Geum. Feb. 13 (Thursday). The commonest species of this area is G. canadense Jacq. The typified form is then leaved with fest reflected carpels in a head. The peduncle with short irregularly spaced hairs, and often with longer hairs intermixed. This runs in var. comporum (Ryd.) Fernald's Weathery, chiefly of the southwest, but common on Long Island, with thick leaves and more hairy stem. G. virginianum L. (G. album (Poter) Bicknell) differs in having shorter petals, and larger leaves, but I do not see sharp distinction between it and G. canadense var. comporem. It is abundant in n.e. N. Jersey and not uncommon on Long Island. G. laciniatum Murr. var. trichocarpum Ferrell, sp. previously locally abundant in n.e. N. Jersey, rare on L.I., has large knocker heads with compact carpels, and strigose-bristly stems. A northern species extending north to Pennsylvania. G. allepicum Jacq. var. strictum (Ait.) Fernald; a northern species with soft many flowered heads. The carpels directed downward. Northern N.J.; one specimen from Long Island.