AND THEIE CULTURE. 80 



the rhizome dies in tlie part which does not produce rootlets, and at 

 the same time a new rhizome arises from the base oF the bulb of the 

 year^ to form in its turn at its extremity another bulb to yield the 

 flower-stetn of the year following. There are produced, then, in 

 these LiHes a succession of subterranean bulb-bearing branches, or a 

 series of successive generations, each of which has an annual bulb for 

 its fundamental basis. 



" In parting finally from this squamose type of structure I wish to 

 point out that there are three different kinds of ^rhizome' in different 

 species developed in connection with it, all of which are spoken of in 

 books under the general term ' rhizome,^ but which are not homolo- 

 gous, viz. : — First, the produced oblique central axis of the Californian 

 Lilies ; second, the lower part of the horizontal branch originating 

 from a bud developed in the axis of a leaf-scale, which branch at its 

 extremity bears a new bulb, as in Canadense ; third, the lowest part 

 of the flower-bearing stem above the bulb when it creeps below the 

 surface of the soil, as in LcichtliiuiJ''^ 



One thing which has puzzled me a good deal in my studies among 

 Lily bulbs has been the not unfrequent occurrence of jointed scales. 

 Thi s is constant enough to become quite characteristic in the case of 

 Canadense, Parvum, Pluladelphlcum, Avenaeeum (not Hansoni, 

 often until quite recently miscalled Avenaeeum) , and one or two 

 others of the American kinds. This peculiarity is, however, not 

 solely confined to the American species, since the broad-jointed 

 •scales are found in one form of the extremely puzzling Davuricnm. 

 I was much perplexed after having sketched a bulb of the proliferous 

 entire-scaled form of this species in one collection (which the possessor 

 guaranteed true to name, having bloomed it), to find a totally distinct- 

 looking bulb at another collector's, with jointed scales, of the identity 

 •of which its owner was equally confident. When Mr. Elwes called to 

 see my original sketches of Lily bulbs, however, he relieved my anxiety 

 by informiag me that the proliferous form has long been grown in 

 Dutch gardens for exportation to this country, and that formerly it was 

 :sent here as a substitute, and under the name ofCateshan. The other 

 form, with jointed scales, appears to be the native condition of the 

 plant, and blooms more freely than the proliferous form, otherwise 



* L. Wilsoni, which is generall}' considered a member of the Thunhcrfjianuiii gi'oup, 

 has a mode of development unlike that which is met with in any other kno\ra 

 cultivated species. This plant emits from the outer scales of the matured bulbs a 

 kind of underground i-unner, which terminates in a flower stem ; but its chief peculiarity 

 is, that it bears at intervals of 2 or 3 inches, as it progiesses, young equal-sized bulbs, 

 which aff'ord excellent means for the rapid increase of the i^lant. The bulbs of the 

 original plant propagated themselves in this way, and seedlings of it which have reached 

 the flower stage, and which may consequently be safely identified, possess in a full 

 degree this remarkable habit, which, as we learn from ^Mr. "Wilson, is not found in 

 any other species, the hoiizontal portion of the flowering stem of Lcichtlinii not being 

 (at least normally) bulbiferous, and, moreover, jiroceeding from the crown of the mature 

 Wh. — Florist and Pomologist, Dec. 1874, -p. 269. 



