CERTAIN VARIETIES OF THE COMMON SUGAR-CANE. 201 
Dr. Benecke shows clearly that the occurrence of fruit in 
sugar-cane had been observed by him during the years 1887 to 
1889, and he is probably the first to have published (in 1889) a 
description with drawings of the fruit and the mode of germination. 
Those interested in the subject are referred to Dr. Benecke’s 
pamphlet. In the meantime the above short summary will 
emphasize the fact and bring to the notice of botanists generally 
the possibility now of multiplying the sugar-cane by seminal 
reproduction.—D. M.] 
DESCRIPTION OF PLATE XXXIII. 
Fig. 1. Portions of flowering panicle of sugar-cane, showing arrangement of 
spikelets. 
Fig. 2. A single spikelet enlarged (after Hooker). a=upper glume, 5—pale. 
c=lower glume. d=anthers. e=lodicules. f=ovary. g=stigma. 
Fig. 3. Ovary and stigma, x 10. 
Fig. 4. Caryopsis removed from glumes x10, with longitudinal and cross 
sections. 
Fig. 5. Caryopsis, showing first stage of germination. 
Fig. 6. Later stage of germination. 
Figs. 7, 8, and 9. Germination observed when the caryopsis is still enclosed in 
its glumes. 
Fig. 10. A seedling sugar-cane, natural size, three months old. 
On the Development of the Sporangia in Rhodochorton Rothit, 
Näg., and R. fforidulum, Nüg.; and oj a new Species of 
that Genus. By R. J. Harvey Gibson, M.A., F.LS. 
F.R.S.E., Lecturer on Botany in University College, Liver- 
pool. 
[Read 5th June, 1890.] 
(Prate XXXIV.) 
Tir following observations were made on material collected on 
rock-ledges in caves at Dinmor Point, Anglesea, and examined 
fresh in the Laboratory of the Liverpool Marine Biological 
station at Puffin Island. 
The habit of Rhodochorton Rothii is described by Harvey 
LINN. JOURN.—BOTANY, VOL. XXVIII. R 
