NATURAL SCIENCES OF PHILADELPHIA. 
133 
OoNOCLiNiUM lost part of their foliage, and all their flowers. They had to be 
cut back, and grew again, 
Aphblexis. Although slow to exhibit any change, they were sufficiently af- 
fected to retard their growth. 
Cineraria were very sensitive ; they lost their foliage immediately, and re- 
c overed, 
Barnadesia rosea lost all its flowers and leaves, and recovered. 
Stifftia lost all the foliage, and was slow in recovering. 
COMBRETACE^. 
PoiVRBA recovered after the loss of all their leaves. 
OoMBRETUM lost all their foliage, and required some mouths to recover. 
QuiSQUALis, dry, and not affected. 
ONAGRACEJE. 
Fuchsia. Over fifty specimen plants, some of them more than eight feet in 
height, were in the green and hot-houses, coming on for exhibition of the Penn- 
sylvania Horticultural Society. They were ruthlessly stripped of all foliage, 
and the branches injured almost to the root. Nearly all had to be thrown away, 
and the few which remained were useless for the season. 
LopEZiA lost all its foliage, and recovered. 
MELASTOMACEiE. 
Oentradbnia, although remote from the leak, were among the first to feel the 
effects of the gas. Leaves and flowers were all killed, and the plants recovered 
very slowly. 
Lasiandra splendens lost all its flowers and foliage, but recovered. 
Melastoma, although not much affected, did not flower as usual. 
Medinilla. Of this genus, comprising a number of species, all suffered very 
severely in the entire loss of leaves. Though remote from the leak, they re- 
quired close pruning, and were many months in recovering. 
MYRTACEJS. 
Oallistemon suffered the loss of all the foliage, and recovered. 
Metrosideros lost all their foliage and flower buds ; they soon grew out 
again. 
Leptospermum lost all their buds and flowers, with every leaf — recovered. 
PsiDiuM. These were severely handled. They lost all the foliage, had to be 
cut back closely and were a long time in reviving. 
Myrtus were denuded of all foliage — recovered with scarcely an effort. 
EuaBNiA were slow in recovering after the loss of foliage and young wood. 
CACTACEiE. 
Epiphtllum. In common with all the family of Gactacea^ these sufi^'ered con- 
siderably. Of a large number placed upon shelves in the hot-house, ail were 
violently affected. The whole substance of the plant quickly turned yellow, 
and became soft and flaccid, as a frosted or scalded vegetable. The greater part 
were thrown away ; the remainder were long in recovering. 
BSCALLONIACE^. 
Escallonia lost all their leaves, and recovered slowly. 
1858.] 
