46 
DESCRIPTIVE LIST OF NEW PLANTS. 
ters of the plant there is a striking affinity with M. macrocarpum. 
It is, however, easily known from that species by the blood- 
coloured petioles and nerves of the leaf, and the crimson bristles 
which clothe the stem. A warm moist air is among the most 
important particulars in the treatment of the genus : they will 
thrive in any peaty soil, but are much improved by the addition 
of a portion of leaf mould.— Pax. Mag. Pot. 
Gesnerace^e. —Didynamia Angiospermia. 
Gloxinia Passinghamii. This Gloxinia was discovered by a friend 
of Mr. Passingham, of Trew, in the county of Cornwall. It was 
found in a deep ravine, much shaded, and in a very damp situa¬ 
tion, high up the Corcovado mountain, in the province of Rio 
Janeiro. It was in a situation very difficult to get at, but its 
extremely rich purple colour induced the gentleman to procure 
the root. Though it does not appear to differ specifically from 
G. speciosa , its large size and brilliant colour will make it an 
esteemed favorite.— Pax. Mag. Pot. 
PORTULACACEiE. —Podecandria Monogynia. 
Calandrinia umbellata. A small sub-shrub, of a prostrate 
habit, with little crowded linear leaves. The flower-stems, which 
are very wiry, spring from the termination of the shoots of the 
preceding summer, and rise about six inches, in their progress 
forming a bottle-shaped swelling at the foot, from immediately 
beneath which five or six fresh shoots push, to flower in their 
turn the succeeding season. Thus the plant goes on extending 
year by year, still retaining its procumbent habit, and multiplying 
the number of flowering branches. The flowers are disclosed in 
clusters at the top of the almost leafless flower-stem, and, although 
they are not so large as those of some of its allies, they ensure 
esteem for their numbers and rich purple colouring. They are 
by no means fugacious, but, unfortunately, like other Calandri- 
nias, they never expand except whilst the sun shines brightly 
upon them. In its wild state it inhabits dry rocky places about 
Conception, in Chili, where it was first discovered by Ruir and 
Pavon. Seeds were received by Messrs. Veitch, of Exeter, in 
1844, from their collector, Mr. W. Lobb, who met with it in his 
exploration of that district. 
It is expected to prove quite hardy. Till this is better deter¬ 
mined, however, it will be the safer plan to preserve it in pots 
