268 Observations upon the effects of Frost, 



the Society, on a south wall, after having flourished there for 

 7 or 8 years. 



Viburnum cotinifolium proved hardy in the Society's Garden. 



Cape of Good Hope. 



Aponogeton distachyon proves at Carclew one of the most deli- 

 cate as well as fragrant aquatics, and flowers all the year. 

 During the severest weather it remained unhurt, although 

 encrusted with ice. Seeds of it were sent by Sir C. Lemon, 

 in a letter from Edinburgh, several years ago ; they were 

 enclosed in a bit of oiled silk, and after being received were 

 put into a lump of clay and dropped near the edge of the 

 pond, where they vegetated and have grown ever since. 



Amaryllidaceous plants, although generally destroyed, escaped 

 in some yjlaces ; even at Claremont, Amaryllis Belladonna, 

 vittata, crocata, psittacina, formosissima, and several others, 

 were uninjured. Crinum capense, at the edge of a pond 

 escaped injury at Carclew, as also did Nerine undalata at 

 the same station. But at Sketty they were mostly killed, and 

 not one of them flowered in the succeeding summer. A mule 

 Nerine, with the bulbs above ground, was uninjured at 

 SpofForth. 



Of Gladiolus and Ixia, many species only covered with about 

 an inch of rotten fern, survived at Claremont ; Gladiolus 

 psitlacinus at Carclew. All the mule Gladioli, Sparaxis 

 pendula, which were covered with leaves, together with 

 Watsonia Mariana, and Gladiolus psittacinus, which were 

 unprotected, were unharmed at SpofForth. Mr. Herbert 

 considers the latter to be as hardy as a crocus, but impatient 

 of a hot summer. But, on the other hand, at Glasgow, most 



