468 THE SALIX LISTS IN THE 'LONDON CATALOGUE.* Obviously it is most convenient that both should stand together S. Arbuscula, 1403 phylicifolia c. nigi'icans X Myrsinites {Walilenhergii Ands.). It has before been pointed out that S. Wahlenhergii is the latest of four or more names for this hybrid. If ;S'. punctata Wahl. is un- satisfactory through some confusion of original specimens, which is the objection advanced, then *S'. Myrsinites-nigricans Wimmer should be adopted (1866). Andersson used 8, myrsinitoides Fr. in DC. Prodr. xvi. (2), 290, in 1868, and replaced this by S. Walilen- bergii in Blytt's Norges Flora a few years later (1874). 1403 phylicifolia c. nigricans X rejjens {^nigricans-repens Heiden- reich). Dr. White's description of specimens from Mid-Perth looks as if the right plant had been found ; but I have seen no satisfactory British specimens, and have entirely failed in my attempts to pro- duce artificially both this hybrid and also 8, phylicifolia x repens, 1404 Arbuscula x Myrsinites (serta F. B. White). Of this also I have seen no specimens, suspected plants having turned out otherwise in the garden. These two species do not cross readily. 1404 Arbuscula x phylicifolia [Dicksoniana Sm.). Dr. F. B. White considered that Leefe's published specimens (Sal. Exs. i. 12) "received from Mr. Borrer as from Smith" were rightly referred by Leefe to 8. Dicksoniana Forbes, t. 55, fig. 1. But he mentions Forbes having doubts whether his plant was the same as Smith's, and quotes Leefe as saying that the plant described by Smith "must be regarded as at present unknown." The description of Smith's plant (Sm. Eng. Ft. iv. 196) does not fit Leefe's cultivated plant in important particulars. In Smith's plant the ovary is " on a longish smooth stalk, elevated somewhat above the scales"; the catkins are ovate, " in which the present 8alix dififers from all we have hitherto described, and agrees with a few other dwarf species, particularly the rosmarinifolia and Arbuscula (8. Arbuscula Sm. = 8. repe7is L.). And again, under 8. ^'Arbuscula " (i. e. 8. repens L.), he says of its catkins that "by their short ovate figure they assist materially in characterizing the species, agreeing most with those of 8. Dicksoniana, from which the leaves of the present [species] widely differ in form and silkiness." It is evident that the 8. Dicksoniana of botanic gardens and of Leefe's 8al. Exs. Fasc. i., with its cylindric catkins and shortly-pedicelled ovaries, cannot be the same as the plant Smith describes, and which he carefully notes differs from the foregoing species (some Arbuscula and phylicifolia forms) by their ovate catkins. Judging from Smith's description, one may say that plant may very possibly have been 8. phylicifolia x repens, but cannot have been 8. Arbuscula x phylicifolia. If the botanic garden Dicksoniana, which Leefe published in his set, be this hybrid, then its synonym should be 8. Dicksoniana Leefe, or possibly 8. Dick- soniana Forbes, but not 8. Dicksoniana Sm. I have not yet got this plant for cultivation. .1405 viminalis X Caprem (8. 8mithiana Willd.), with five varieties of this compound hybrid, a. stipularis Sm., b. sericans Tausch., c. velutina Schrad., d.ferruginea G. Ands., e. acuminata Sm. The unsatisfactoriness of Andersson' s arrangement, or of
