Dalea phleoides var. phleoides


Rupert C. Barneby

39a.  Dalea phleoides (Torrey & Gray) Shinners var. phleoides

(Plate LIV)

Characters as given in key; 2n = 14 (Turner, 1959, as P. glandulosum); n = 7 II (Mosquin).— Collections: 14 (o). Open places in sandy woodlands, sometimes in old fields and along waysides, below 250 m, local but colonial, s.-e. and e. Texas, from the lower Guadelupe River n.-e. to the lower Neches and upper Sabine rivers; reported by Wemple (1970, map 8) from one locality in the Rio Grande valley in or near Maverick County. — Flowering May to July. —Representative: Texas: T. & L. Mosquin 5811 (NY); Wemple & Jackson 660, 666, 692-1 (NY); Reverchon 2667 (NY); B. L. Turner 3891 (TEX, WIS); Drummond 131 (K, NY); E. Hall 136 (NY).

Dalea phleoides (Torrey & Gray) Shinners, Field & Lab. 17: 83. 1949, based on Petalostemon phleoides (resembling timothy-grass, of the narrow flower spike) T. & G., Fl. N. Amer. 1: 310. 1838. — "Arkansas, Dr. Leavenworth" Holotypus, NY (herb. Torr.)!—Kuhniastera phleoides (T. & G.) O. Kze., Rev. Gen. 192. 1891. Petalostemon aphle- oides (sphalm.) Young, Fl. Tex. 221. 1873.

Petalostemon glandulosus (glandular, of the calyx) Coulter & Fisher, Bot. Gaz. 18: 299. 1892. — "Eastern Texas, at Hockley (F. W. Thurow, in 1890), and at Industry (H. Wurzlow, in 1892)." Lectotypus (Wemple, 1970, p. 55), Frederick William Thurow in 1890 US! paratypus (Wurzlow), NY.— Dalea glandulosa (Coult. & Fish.) Shinners, Field & Lab. 17: 83. 1949, a later homonym of D. glandulosa (Blanco) Merrill, 1905.

Petalostemon candidus var. multifoliolatus Gray ex E. Hall., Pl. Tex. 7. 1873, nomen.—Based on Hall 136, cited supra.

There seem to be no modern collections from the present state of Arkansas. Leavenworth, however, is known (McVaugh, Field & Lab. 15: 67. 1947) to have collected in the Neches and Angelina valleys in eastern Texas in 1834 and 1837, and therefore passed through part of the contemporary range of the species.

The reduction of P. glandulosus, first proposed by Heller in 1896, was accepted by Wemple and is not disputed.

References: [Article] Barneby, Rupert C. 1977. Daleae Imagines, an illustrated revision of Errazurizia Philippi, Psorothamnus Rydberg, Marine Liebmann, and Dalea Lucanus emen. Barneby, including all species of Leguminosae tribe Amorpheae Borissova ever referred to Dalea. Mem. New York Bot. Gard. 27: 1-892.

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