M. MAXIMOWICZ ON THE INFLUENCE OF FOREIGN POLLEN. 165 
the outermost exhibit above the base a distinct contraction ; in 
the next row this becomes so evident that the scale appears to 
have a stalk. If, however, a young bulb such as occasionally 
forms itself in a scale-axil at the base of the previous year's 
stem is examined, the outermost scales are simply ovate without 
any trace of a contraction above the base. These are probably 
absent from the old bulbs through decay. 
Although a contraction of the inner scales above the base takes 
place even in L. hulhiferum, it is very different from the constric- 
tion in L. davuricum, which further inwards in the bulb assumes 
more and more the character of an articulation. The scales 
break off at the constricted point very readily and smoothly. 
The constriction runs quite round the scales ; and occasionally 
broods of small bulbs break out on the broken-off scales at the 
articulation. 
From what has been said, the difference in the structure of 
the bulb in the two species becomes sufficiently evident. It 
has, in fact, long been known to gardeners, who amongst hundreds 
of bulbs can pick out those of L. davuricum with the greatest 
certainty*. 
Scarcely less distinct are the differences of both species in 
the capsules ; and as they readily produce fruit, it has been already 
repeatedly describedf. The capsule of L. hulbiferum is long and 
narrow, almost cylindrical, 6-grooved, and the top deeply umbili- 
cate, because each cell projects in an elevated point-like knob. 
The seeds have a very narrow wing : " seminum discus ala 
octuple latior," says Lallemant. The capsule of L. davuricum is 
shorter and broader, nearly obovate, 6-grooved, and the top flat 
and almost truncate from the cells being shortly rounded off. 
The seeds have a very broad wing, almost half the width of the 
seed. 
Both species also afford good distinctions in the floccose hairi- 
ness of the long-pointed leaves, and the externally pubescent 
* L. avenaceim, Fisch., exhibits a similar appearance of articulation (see my 
diagnosis and the figure in Kegel's Gartenflora, 1865, p. 290, t. 485). Compare 
also, and on other structural distinctions of Lily-bulbs, my essay on the Lilies of 
Japan in the Arbeiten des kais. bot. Gartens. 
t See the excellent essay of Lallemant in the Index sextus Sem, Horti botan. 
Petrop. 1839, pp. 54, 58. For the capsule of L. davuricuin see Glehn. Supp. 
ad Ind. Sem. H. Petrop. 1868, p. 19 (under L. spectabile). For a figure, Traut- 
vetter, Fl. Ross. 111. t. 19. f. g. 
VOL. III. S 
