118 
FLORICULTURAL NOTICES. 
other Ipomoeas, occasionally indulging in throwing out angles from its leaves. It appears to be 
wild all over the tropics of Asia ; the Circars and the Moluccas according to Roxburgh, Ainboyna 
according to Rumphius, and apparently Java, are its favourite countries. According to Rum- 
phius, the flowers open about nine in the morning, and close at two in the afternoon. It is a 
perennial of great beauty, flowering most profusely in the stove." The specimens from which 
the drawing was made were obtained from Mrs. Lawrence, and " were the most lovely one 
can imagine ; in the month of December, when it is most difficult to procure such things, 
forming festoons of snow-white yellow-eyed flowers, resting upon a deep green shining foliage.'' 
Bot. Reg. 24. 
Onci'dium microchilum. Introduced some years ago from Guatemala, by G. U. Skinner, 
Esq., and afterwards found in the same country by Mr. Hartweg. " Although not a very 
splendid plant, it is far from being undeserving notice. Its very glaucous flower-stem, the snow- 
white lip and crimson petals, lying, as it were, in the middle of dusky -brown sepals, produce a 
singular and pleasing effect." It was flowered by Mr. Ashton, gardener to J. C. Harter, Esq., 
of Broughton, near Manchester, in September last, and the following account is from Mr. 
Skinner : — " The Oncidium microchilum I first found on the top of the ' Cuesta ' of Puentezuelas, 
some thirteen leagues from Guatemala, and sent it to Mr. Bateman, in 1838. It was growing 
on a bare rock, with a quantity of dead leaves and grasses about its bulbs, and its roots woven 
into the interstices of the rock and mould about it, very much exposed to the sun, except during 
the middle of the day, when a ledge of rock seemed to afford it a little shade. I never saw it 
except in such situations, generally exposed, and always among rocks. It is very fragrant, and, 
in its native habitat, I have always observed the sepals and petals darker and more marked than 
this now flowered here. The temperature generally of the above habitats is 68 Q to 70°, and, 
from being exposed, cold at nights." Bot. Reg. 23. 
Rhododen'dron Rollisso'nii. " In many respects this very striking plant so much resembles 
R. nobile, the Ceylon variety of R. arboreum, especially in its deep red flowers, and the closeness 
with which they are ai-ranged, that we supposed it must be it ; but, upon comparing it with wild 
specimens from Ceylon, we find that the Rhododendron of that island has leaves silvery under- 
neath, while in this plant they are rusty. It is therefore clear, that R. Rollissonii has some 
other origin ;" and Messrs. Rollisson inform us that it was received from the Himalaya 
Mountains. " It is among the handsomest of the crowd of varieties, called hybrids, which 
tempt the buyer at every shop, and seems in colour to resemble most a plant called Mars by Mr. 
Lee, of Hammersmith, but its flowers are much more compact." Its leaves are very large, 
wrinkled on the upper surface, and deep brown beneath. It is considered rather more tender, and 
to require a warmer situation, than the old R. arboreum. Bot. Reg. 25. 
Siphocam'pylus longipeduncula'tus. "This is another fine Siphocampylus, for which our 
stoves are indebted to Mr. Gardner, who sent home seeds, as well as specimens, from the Organ 
Mountains of Brazil. It was first detected in the province of Rio Janeiro, by Pohl, and figured 
by him in his splendid work on the plants of Brazil. The length of the peduncle is found to be 
variable ; for, whereas the dried native specimens sent home by Mr. Gardner exhibit them as 
long as, or even longer than, the leaves ; in our flowering plants raised from his seeds, the 
peduncles are scarcely more than half the length of the leaf. The stems are long and trailing, 
rather than climbing, and should be fastened to a wire trellis, when the plant makes a handsome 
appearance. Ours flowered in January, 1843, and that of the Glasgow Botanic Garden about 
the same time." The leaves are long, ovately acuminate, sharply toothed, and of a thin texture. 
The flowers are red, with yellow segments. Bot. Mag. 4015. 
Stigmaphy'llum heterophy'llum. « A handsome climber, hitherto cultivated in the stove by 
Mr. Veitch, of Exeter, who raised it from seeds sent from Buenos Ayres by Mr. Tweedie ;" but 
there is reason to believe, from the authority of specimens in Sir W. J. Hooker's herbarium, 
"that its native country is Tucuman, whence the seeds were brought by Mr. Tweedie, and reared 
by him at Buenos Ayres. It is a ready flowerer, and promises to be worthy of cultivation in every 
stove or warm greenhouse, making a beautiful object if trained against trellis- work. At Exeter 
it flowered in December, 1842." It is a climbing plant, with the habit of Slephanotis, and leaves 
that are sometimes entire and occasionally three-lobed. The flowers are in axillary umbels, 
yellow, and having the petals wavy and ciliated. Bot. Mag. 4014. 
