Species

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Total: 244

species valid

Salix merriamii Cockerell Amer. J. Sci., Series 4, 26(156): 543. Dec 1908

species valid

Sabina linguifolia (Lesq.) Cockerell Univ. Colorado Stud., 3(3): 175. Jun 1906

species valid

Rosa wilmatteae Cockerell Bull. Amer. Mus. Nat. Hist., 24(Article 4): 94. 7 Feb 1908

species valid

Rosa ruskiniana Cockerell Amer. J. Sci., Series 4, 26(156): 540. Dec 1908

species valid

Robinia mesozoica Cockerell Torreya, 12(2): 32. 15 Feb 1912

species valid

Robinia brittonii Cockerell Amer. J. Sci., Series 4, 26(156): 543. Dec 1908

species valid

Ribes protomelaenum Cockerell Bull. Amer. Mus. Nat. Hist., 24(Article 4): 93. 7 Feb 1908

species valid

Rhus mensae Cockerell Amer. J. Sci., Series 4, 26(156): 543. Dec 1908

species valid

Rhus lesquereuxii Knowlt., Cockerell in Knowlt. Bull. U.S. Geol. Surv., 1919, (696): 552. 13 Feb 1920

species valid

Rhamnus newberryi Knowlt., Cockerell in Knowlt. Bull. U.S. Geol. Surv., 1919, (696): 548. 13 Feb 1920

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