2oO Dr. K. BroAvn oyi some new or Jifth-hnoion 



The species never attains a greater size than a shrub about 

 4 feet in height. I found it, in September 1865, growing in 

 patches in the locality named, about 2000 feet above the level 

 of the sea, but producing fruit very sparingly, and described 

 it in my notes as " Quercus, sp. nov., No. 253," in ' The 

 Farmer,' May 16, 1866. In the form of the leaf it is not 

 unlike the chestnut-form of Quercus f?en5?[^ora,Hook.&Arn.*; 

 but it differs widely from that species in the form of the cup, 

 which is not covered with recm-ved hooked scales, but w^itli 

 ovate appressed scales, tumid at the base, so as to look, as I 

 have described them in my field-notes, like flattened tubercles. 

 A very competent authority. Prof. (Ersted, in a private note 

 to me regarding some specimens of this oak which were sub- 

 mitted to him, remarks : — " Your Q.Sadleriana is most inter- 

 esting. The cupula is very peculiar, with its thin margin. 

 I think it is nearest Q. Oriffitliii, Hook. f. & Thoms.f, from 

 the Himalayas. There is none of the American species which 

 it resembles." It comes therefore under CErsted's third groupj 

 (Serrataj) of his second section [Prinus) of the subgenus 

 Lepidohalanus of the restricted genus Quercus. 



I name it in honour of Mr. John Sadler, Assistant Secretary 

 of the Botanical Society, and Assistant to the Professor of 

 Botany in the University of Edinburgh. 



2. Quercus (Erstediana^ R. Br. Campst. 



Leaf small, oblong or obovate, petiolate, with from three 

 to five rounded, shallow, acutely cut lobes on either side ; 

 base acute, inclined to be imequal ; veins very prominent 

 inferiorly, and reaching the edge at the termination of the 

 lobes ; glaucous above, inclining to pubescence inferiorly ; 

 dark glistening green above, paler brownish white or cinereous 

 beneath ; length 2^ inches, breadth 1;^ inch, length of petiole 

 1^ inch. Fruit solitary, rarely in twins (in which case the 

 second fruit is usually dwarfed or abortive), supported on a 

 moderately long, stout peduncle ; glans large, ovate, flattened 

 at lower end, terminating superiorly in an elongated conical 

 point, overtopping cup | of length, brown in colour, testa 

 thin ; length 1^ inch, diameter f inch : cup hemispherical, 

 shallow, tubercular in appearance ; inside dark brown, and 

 covered Avith a slight whitish pubescence ; walls thick, thinner 

 superiorly ; scales ovate (occasionally subulate) , tlie base much 

 swollen, so as to give the exterior of the cup the tubercular 



* Botany of Beechey's Voyage, p. 391. 

 t De CandoUe's ' Prodromus,' vol. xvi. p. 14. 



X "' Bidrag til EgesL'egtens Systematik," Naturli. Foreniug Vidensk. 

 Medd. i Kjobenhavn, 1866, p. 68. 



