and on the Origin of the Valleys of Auvergne. 229 



illustrious founder were now alive, he would testify as much 

 delight as at the discovery of the granite dikes of Glen Tilt, 

 when he saw the conclusions, which he had deduced from a more 

 imperfect survey of geological phenomena, rendered popular in 

 the' south by the ingenious reasonings of one, whom, though lie 

 cannot certainly be said to belong to the " Oxford School of 

 Geology," as it is somewhere called, Alma Mater will, I am sure, 

 b6 always proud to number amons; her sons. . , 



On the Characters and Affinities of certain Genera, chiefly be~ 

 longing to the Flora Peruviana, By Mr David Don, 

 " ^Librarian to the Linnean Society, Member of the Imperial 

 ' Academy Naturae Curiosorum, of the Royal Botanical So- 

 ciety of liatisbon, and of the Wernerian Society of Edin- 



; burgh, &c. (Concluded ivom p. 12^)^;;;;-^;;^;^ 



,dM QUILLAJA and KAGENECKIA. 



Xhkse genera, together with Vanquelini/i,.'lcomtdw'Rscoa^ 

 stltuting a small family, differing essentially both from RosacecR 

 and SpircBacece in their erect ovula, and from the latter, also, 

 in the valvular aestivation of their calyx. The habit of the 

 plants composing it is likewise abundantly different, and they 

 are niostly inhabitants of the southern hemisphere. This fami- 

 ly may be termed Quillajew and it may be characterised as fol- 



QUILLAJE^. ),,o,^u« u , liKV, 



Sfuueaceauu Jki: Pahs. Kunth et Deo* t ; /T ; : j 



Calyx 5-fidu?, sestivatione valvatus. 

 Vetala 5, laciniis caljcinis alterna; quandoque nulla. 

 Stamika definite numerosa (10 v. 15) calyci inserta : an^tera biloqukref^ 

 FisTii.LUM : ovaria 5, basi connata, unilocularia : ovu/a iiunleroM, ez^ia & 

 styli 5 : stiff mata totidem, unilateralia, papillosa. — ' , '«»<•» '' ''^'^^ '^^ 



Fructus : folliculi 5, in circulum digesti, basi connatL; : ^oot ^TiriJr-fiV/ 

 Semina duplici ordine suturaj folliculorum internae inserta, a^^^^^pdentia^ 

 apice alata : umhittco basilari : testa simplex, membranacea : albumen nul- 

 lum. >- 



Embryo erectus: co/y/^rf(m^* foliacea;, coutrarie convolut« : 'roJicMtocoWle- 

 doiiibus brevior, teres, umbilico proxima. 



Arboies (praccipuo Amer. Austr.) Folia atlerna tndivha. Siiinila: mminua 

 ciuUicai. riorca Urmnaia; d'mcU * 



