98 TRANSACTIONS OF THE [Sess. lxxx 



de 10 metres. Fleurs blanc de lait. Foret des liautes 

 montagnes ; forme presque a lui seul des forets au sommet 

 de Koua-la-po (Hokin). 21 Mai 1884. Leg. ipse Delavay." 



In 1887 ^ Franchet described under the name Rh. 

 lacteum, Franch. var. miicroplcijUuin another of Delavay 's 

 Rhododendrons in the following terras ; — 



" Folia ovato-oblonga, longe cuneiformia, usque ad 9 

 poll, longe subtus dense rufo-lanuginosa, llores uscjue 20-25 

 glomerato-corymbosi, corolla 4-5 cent, longa, lactea cum 

 maculis fuscis. 



" Yunnan ad coUem Yen-tze-hay. Alt. 3200 m. ubi silvas 

 efformat; li. 28 maj. (i)elav. No." 2214)." 



The full story on Delavay 's ticket is:— "No. 2214. 

 Fleurs blanches avec une legere teinte lactee. Arbre de 8 

 a 10 metres. Les forets au col de Yen-tze-hay (Lankong) 

 a 3200 m. d'alt. 31 Mai 1886. Legit Delavay." 



I am under special obligation to M. Lecomte, Director of 

 the Botanical Dejmrtment in the Jardin des Plantes, Paris, 

 for having given me the privilege of examining Franchet's 

 type specimens (Delavay 's Nos. 104 and 2214) preserved at 

 Paris, and from them I have transcribed above Delavay 's 

 original tickets. In addition to these type specimens M. 

 Lecomte has been so good as to send me a third sheet of 

 specimens collected by Delavay and named Rh. lacteum, 

 Franch. on the sheet by Franchet. Delavay 's ticket on 

 this specimen reads : — " Rhododendron No. 2794. Fleur 

 jaune soufre. Arbrisseau de 2 metres parmi les broussailles 

 sur le Tsong-chan au-dessus de Tali a 4000 m. d'alt. Le 

 27 Juin 1887. Legit ipse J. M. Delavay." This plant is 

 certainly of the same species as Rh. lacteum, Franch., 

 Delavay No. 164. 



In addition to these Paris specimens I have had for 

 examination the collections made by Mr. Forrest in Yumian 

 during his several years of exploration and presented to 

 the Royal Botanic Garden, Eldinburgh, by Mr. A. K. Bulley 

 and by Mr. J. C. Williams. Amongst these I find the 

 following, which correspond with Delavay's Nos. 214 and 

 2794 anrl ai-e RJo. lacteum, Franch. : — 



Yunnan. In aiid on the margins of pine forests on the 

 eastern Hank of the Tali Range. Lat. 25" 40' N. Alt. 

 1 Fraiicliet in liull. Sor. V,i,i. Vranri', xxxiv(1887), 280. 



