NATURAL SCIENCES OF PHILADELPHIA. 
131 
EHRETIACE^. 
Helioteopium. Many plants of this genus were in flower. Strange to say, 
tJiej were but slightly affected, and lost neither flowers nor foliage. This 
seems the more remarkable, as their peculiar sensibility to the smoke of to- 
bacco renders it necessary to remove them from the houses, when fumigating 
to destroy the aphides, or green fly. In this instance they grew on and flowered, 
entirely regardless of the destruction around them. 
LAMIACEJ3. 
Salvia suffered in the loss of all their foliage and young wood ; they had 
to be cut back and recovered slowly. 
Gardoquia Hookerii was one of the most sensitive. It lost every leaf, and 
was a long time time in recovering. 
Scutellaria lost all their foliage, and recovered. 
Pkostanthera retusa was powerfully affected ; it lost all its foliage and was 
killed. 
Westringia lost all the foliage, and recovered. 
VERBENACEiG. 
Verbena were not much injured. 
Lantana were dry, and uninjured. 
Clbrodendron were mostly dry, and unaffected. C. splendens was in leaf, and 
suffered considerably in the loss of foliage, but recovered. 
GESNERIACE.^. 
Columnea were stripped of their foliage, but recovered slowly. 
Hypocyrta strigulosa lost all its leaves, and put forth in a very short time. 
Nematanthus shed all their leaves immediately — recovered in a short 
time. 
Alloplectus lost all their leaves and wood-buds — recovered in a few weeks. 
(tesnera lost all their foliage and blossoms — recovered. 
Achimenes were dry, and not affected. 
(liiOSiNiA, dry and uninjured. 
LiEBiGiA lost all its foliage, and recovered slowly. 
^scHYNANTHus. Of numerous species, all were much injured. They not 
only lost their flowers and entire foliage, but a portion of the wood. Before 
the leaves dropped off they presented the usual appearance of plants badly 
frozen. They all recovered during the summer. 
Agalmyla staminea was in nowise affected. 
MoussoNiA lost all its leaves and flowers, and recovered. 
Chirita parted with all their foliage, and were slow in recovering. 
IsoLOMA were not sensibly affected, 
BIGNONIACE.E. 
BcGCfONiA venusta was planted in the open ground in the hot house. It twined 
over the rafters for a great distance, and was just coming into bloom. Not a leaf, 
wood-bud, or flower remained, and many months elapsed before it recovered'. 
Adenocalymna comosum lost all its foliage — recovered. 
Spathodea lost all the leaves, and recovered. 
Tkooma capensis lost all its leaves^ and recovered, 
1858.] er^' 
