When compiling Part III., I separated the western form of A. nemorosa from the eastern one, being satisfied that it was a distinct variety. Since then Dr. Gray has erected it into a new species under the above name. All references in Part III. belong here. Not uncommon in low damp woods in the southern part of Vancouver Island, 1887. (Macoun.)
(19.) A. thalictroides, Spach.; Gray Man. ed. VI., 39. (1890.)
All references under Thalictrum anemonoides, Part I., 14 & III., 478, belong here.
(25.) M. minimus, Linn. Var. lepturus, Cray. M. minimus, Macoun, Cat., L, 15 & III., 479 in part.
All references to Vancouver Island specimens are placed here. This species is quite common in the neighbourhood of Victoria, Vancouver Island, in damp spots in pasture fields. Dr. Cray places this variety under M. ąpetalus, Cay, but I prefer Prof. Creene's opinion in Bull. Torr. Bot. Club, xiii., 61, that it should be placed under M. minimus.
(26.) M. apetalus, Cay.; Cray, Torr. Bull. Bot. Club, XIII., 2. References under M. aristatus, Part I., 15 & III., 479, belong here.
(66.) D. scopulorum, Gray, var. glaucum, Gray, Bot. Gaz., XII., 52.
D. scopulorum, Gray; Macoun, Cat., I., 25, in part.
All our Rocky Mountain specimens are of this variety. Mountains north of Finlayson Lake, N.W.T., Lat. 61°, 1887. (Dawson.)
(97.) Nuphar ad vena, Ait. f. var minus, Morong.
References under N. luteum, Smith, var. - --------(?) Part I., 23, belong here.
(3067.) S. diphyllum, Nutt. (Celandine Poppy.)
Damp woods, from Plover Mills to Thorndale, Middlesex Co., Ont., 15th May, 1887. (R. Elliott.) Near London, Ont. (Dearness.)
(3071.) P. scapigerum, Hook.
On open slopes, Mount Finlayson, Goldstream, Vancouver Island, May 18th, 1887. (Macoun.)
(173.) D. Fladnizensis, Wulf.; Watson, Proced. Amer. Acad., XV., 258.
References under D. androsacea, Part I., 51, belong here.
(176.) D. incana, Linn. var. arabisans, Watson; Gray, Man., ed. VI., 67. (1890.)
D. arabisans, Michx; Macoun, Cat., I., 52; Gray, Man., ed. V., 71. (1867.)
Draba incana is described in Gray's new manual as having oblong to lanceolate pods which are generally acute and straight and often pubescent, while those of var. arabisans are glabrous, acuminate or acute and twisted.