to the subsequently described species possessing tuberous 
rootstocks. By common consent among botanists the name 
Gesneria is now retained for G. humilis and its allies, and 
Rytidophyllum for G. tomentosa and its allies, whilst the 
name Corytholoma is applied to the species with tuberous 
rootstocks. The latter are, however, still commonly known 
in gardens under the generic name Gesnera, and include the 
following which have been figured in this magazine :-— 
G. aggregata, t. 2725, Lindleyi, t. 3602, Marchii, t. 3744, 
cardinalis, t. 8167, and many others. 
The plant of Corytholoma macropodum here figured 
differed from those originally raised in having a single pair 
of large leaves instead of two pairs of small leaves, and 
blotches on the lower lip of the corolla as against small spots 
in the original plants. Like many other Gesneriaceae it 
appears to be highly plastic and may in time give rise 
to garden races unlike the wild species. 
Drscription.—Herb, 6-9 in. high, glandular - hirsute, 
tuber subglobose, perennial. Stems one or two, annual, 
unbranched, bearing one or two pairs of leaves. Leaves 
suborbicular, cordate at the base, 3-5 in. in diameter, 
obtusely serrate, ciliate, upper surface pilose with short 
erect glandular hairs, lower surface with very prominent 
hirsute veins, otherwise glabrous ; petioles about 4 in. 
long. Cymes solitary, axillary, 5-7-flowered; peduncles 
2-4 in. long. Flowers subumbellate, pendulous; pedicels 
3-3 in. long. Calyz-tube very short; lobes ovate, acu- 
minate. Corolla cinnabar-red, pubescent outside; tube 
1 in. or more long, nearly cylindric, with an annular swelling 
at the base and slightly ventricose above ; limb two-lipped, 
the upper lip consisting of two, the lower of three lobes ; 
lobes of lower lip blotched with purple. Glands of the 
disk 5, the two posticous ones united in the form of a 
horseshoe. Ovary rather densely pubescent; style glandular- 
puberulous; placentas bilamellate.—T. A. SPRAGUE. 
CULrivaTion.— Corytholoma macropodum was raised from 
seeds collected in Sio Paulo, by Mr. G. H. Weigt, Director, 
Botanical Parks, Piracicaba, Brazil, and forwarded to Kew 
in 1906 with a recommendation of the plant as a good 
lecorative species, It grew freely under the treatment 
