were transmitted from Tembuland by Canon Mason to his 
brother Canon Mason, Master of Pembroke College, and made 
over to Mr, R. I. Lynch, Curator of the Cambridge Botanic 
Garden, where a plant flowered in June, 1911. Mr. Lynch 
finds that C. laza is not difficult to grow if care be exercised ; 
the chief danger to be avoided is injury by the Begonia mite, 
from which it may be guarded by the use of suitable insec- 
ticides.. The best soil is a sandy loam, and good drainage 
must be provided, though watering need not be specially 
restricted. If the seed be sown early the plants may flower 
during the first year, but if sowing be delayed till summer 
good plants can be obtained which flower in the following 
year. Owing to its weak habit, three or four plants should 
be grown together in a 44-inch pot. The nearest ally of 
C. lava is C. serpyllifolia, Lehm., which we know from the 
seed-list of the Hamburg Botanic Garden to have been 
in cultivation there in 1828, but of which no subsequent 
cultural trace can be found. Whether it may be possible 
to establish C. lava permanently it is as yet impossible to 
say. But even if it should disappear, there ought to be no 
insuperable difficulty in securing fresh importations of seeds 
not only of this but of other species of Chironia which are 
wild in South Africa, most of which are well worthy of a 
place, even if only temporarily, in our greenhouses. 
Descriprion.— Herb, everywhere glabrous; stems slightly 
angular, leafy, laxly branched, 1-14 ft. long; branches 
ascending or spreading. Leaves opposite, sessile, membranous, 
lanceolate, acuminate, base rounded, margin entire, faintly 
3-nerved from the base, #—1 in, long, 1-1} lin. wide, green. 
Flowers showy, usually 2-3, sometimes solitary, terminal ; 
peduncles 3-14 in. long, rather stiff, Calyx narrowly cam- 
panulate, 5-partite, 3 lin. long; lobes linear-subulate, rather 
longer than the tube. Corolla pale magenta, tube narrowly 
cylindric, half as long again as the calyx; limb contracted ; 
lobes ovate-lanceolate, somewhat acuminate, 5-6 lin. long, 
2-24 lin. wide. Stamens exserted ; anthers straight, yellow. 
Ovary narrow-oblong, acute, 3 lin. long ; style slender, longer 
than the ovary, slightly declinate ; stigma 2-lobed. 
: Fig. 1, calyx and pistil; 2, ovary in vertical section; 3 and 4, anthers; 
9, pistil :—all enlarged. 
