438 



TRAXSACTIONS AND PROCEEDINGS OF [Sess. lvi. 



On the rock-garden 119 species and varieties came into 

 liower during the month, the same number as for last 

 April. Among the more interesting were Andromeda fastigiata, 

 Arnchia ecMoides, Draha aizoides, Dentaria enneaphylla, 

 D. iicntaphylla, Epig^a repens, Erythronium giganteum, 

 Pachystima Ganhyi, Fetrocallis pyrenaica, Primula cashmiriana, 

 P. rosea, Ranunctdus montanus, Rhodothamnus chariiiecistus, 

 Salix Sadleri, Saxifraga Boydii, S. rehisa, Trilliur)i 

 grandiflorum, Xanthorrhiza apiifolia. Of the forty spring- 

 flowering plants whose dates of flowering are annually 

 recorded, the following came into flower : — Draha aizoides on 

 April 3rd ; Omphalodcs vcrna, April 4th ; Adonis vernalis, 

 April 9th ; Auhrietia grandifiora, April 9th ; Narcissus 

 Pseitdo-Narcissus, April 11th ; Corydalis solida, April 10th ; 

 Hyoscyamns Scopolia, April 20th ; Symphytum eaiLcasicuTri, 

 April 25th. 



Readings of exposed Thermometers at the Eock-Garden of the 

 Royal Botanic Garden, Edinburgh, during April 1892. 



