Dalea pringlei var. pringlei

Rupert C. Barneby

14a.  Dalea pringlei Gray var. pringlei

(Plate XXXVIII)

Characters as given in key; spikes mostly (1) 1.5-6.5 cm long; n = 7 (Spellenberg, 1973). — Collections: 20 (o).

Rocky hillsides and boulder-strewn washes in the foothills around the n.-e. margins of the Sonoran Desert, in cactus-thornscrub, ± 800-1000 m (2700-3330 ft), almost entirely within the Arizona Upland (Shreve & Wiggins, 1964), in s.-centr. Arizona (Rincon-Santa Catalina, Tucson, Santa Rita, Baboquivari, Chiricahua, and Mule mts. in Pima, Cochise, and doubtless Santa Cruz counties) s. in Sonora to the upper valley of Rio Sonora (mpos. Sta. Ana Baviacora and Ures). —Flowering August-November, February-May. — Representative: Arizona: Pringle (Sta. Catalina Mts.) in 1883 (NY, UC); Shreve 10,202, 10,216 (UC); Thackrey 12 (NY). Sonora: Wiggins 7234 (ARIZ, UC); Drouet & Richards 3629, 3730 (F); R. & M. Spellenberg 3051 (NY).

Dalea pringlei (Cyrus Guernsey Pringle, 1838-1911) Gray, Proc. Amer. Acad. 17: 201. 1882 ("Pringlei"). — "Foot-hills of the Santa Catalina Mountains, S. Arizona, Pringle, April and May, 1881." — Holotypus, GH! isotypi, NY, US!— Parosela pringlei (Gray) A. Heller, Catal. N. Amer. Pl., ed. 2, 6. 1900. Thornbera pringlei (Gray) Rydb., N. Amer. Fl. 24: 119. 1920.

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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