(849.) Z. aurea, Koch; C. & R. Rev. of N. Amer., Umbell. 127.
Thaspium aureum, Macoun, Cat. I., 181.
Thaspium aureum, var. apterum, Gray, Man., ed. V., 195. (1867.)
All our herbarium specimens of T. aureum belong here, but some of the references given in Part I. may belong to the true T. aureum.
(3121.) Z. cordata, Koch; Hook., Fl. L, 260.
Thaspium trifoliatum, Gray; Macoun, Cat. I,181, in part. All the specimens in our possession from the eastern part of the prairie region have been referred here by Coulter and Rose, while those from the base of the Rocky Mountains are placed under Thaspium.
(350.) T. aureum, Nutt., var. trifoliatum, 0. & R. Rev. of
N. Amer. Umbell., 83.
T. trifoliatum, Macoun, Cat. I., 181, in part. The only specimen of this species in our collection is from Kanan-askis Station at the eastern base of the Rocky Mountains; collected 1885. (Macoun.)
(852.) C. virosa, Linn.; Macoun, Cat. I., 182.
To the species, which is wholly a northern form, Coulter and Rose unite C. maculata as a variety. It, therefore, becomes -
Var. maculata, C. & R., Rev. of N. Amer., Umbell., 130. C. maculata, Linn.; Macoun, Cat. L, 181.
This includes all the more southern specimens and localities, and crosses the continent to the Pacific coast and Vancouver Island. (Macoun.)
Var. Californica, C. & R. Rev. of N. Amer., Umbell., 130. C. Californica, Gray, Proced. Amer. Acad., VII., 344.
Lost Lake, near Cedar Hill, and by ponds near Esquimault, Vancouver Island, 1887. (Macoun.)
(2150.) B. angustifolia, Koch; Macoun, Cat. III., 534.
Abundant in the stream that enters the north-western arm of Lake Okanagan; quite common in a pond on the Reservation at Kamloops, B.C., 1889. (Macoun.)
(857.) B. Americanum, C. & E. Rev. of N. Amer. Umbell., 115.
B. ranunculoides, Macoun, Cat., I., 182.
"Radical leaves linear lanceolate; cauline ones very variable, oblong to linear, more or less clasping; rays unequal, 1/2 to 2 inches long; pedicels short." In general appearance this species resembles the European B. ranunculoides, but is distinguished as above. All references in Parts I. & III, belong here. Pelly River, Lat. 61°, N.W.T., 1887. (Dawson.)