488 Screntific Intelligence. 
of the United States. Specimens of the former, the name of 
which had not been definitely settled, had been sent to Mr. Chas. 
E. Faxon to draw for the Ferns of North America, and that 
gentleman eerea™ the difference between them and his own speci- 
mens of P. Plumula. He brought the matter to the attention of 
the writer of this notice, who then decided to call the large form 
P. pectinatum Linn., an nd the smaller one P. Plumula. The Adi- 
antum had been for a year or more in the hands of Mr. Davenport 
and Mr. Faxon, as unchallenged A. Capillus- Veneris, and was 
first oe something different from that species by Mrs. 
r. Barnes, of Syracuse, who obtained fronds from living plants 
brought fram Ocala , Florida, by Mr. Christian Beh, in March, 1877. 
Mr. Davenport r retains Pelldea brachyptera, of Baker, as a dis- 
tinct —s and is no doubt right in doing so. ithin the 9 
as a distinct cee oa so is uh, “imerieanun, ner Davenport, the 
A, spinulosum var. intermedium of Gray’s manual. 
An appendix gives a list of doubtful and excluded species, and 
one introduced species, Adiantum cuneatu hich was found 
“ Established at alley Falls, Rhode Island” ’ by Mr. J. L. Ben- 
nett, who will doubtless give full particulars of his discovery in 
his forthcoming “ Plants of Rhode Island.” [It seems hardly 
worth while to introduce into a work like this a mere escape from 
cultivation, doubtless transient.] The Catalogue is beautifully 
printed, and contains very few typographical or other ae to 
aa its excelle ence. 
Cane-sugar in Early Amber Cane.—Professor Gai 
(Fifteenth ‘Scaual grees tt of Mass. Agricul. College) contin a 
the following conclusions respecting the proportions of cane and 
grape-sugar in this variety of Sorghum at different periods of its 
growth: Ist. Grape-sugar appears in the cane at an early stage 
of its growth, and increases slowly to from three to four per cent 
before cane-sugar is formed ; 2d. Cane-sugar is first noticeable at 
the time when the flower stalks become visible above the leaves, 
and its amount increases steadily until the seeds are of full size 
yet still soft; 3d. The relative proportion of grape-sugar to cane- 
sugar at any ‘time before the hardening of the seeds, do not exceed 
3°16 per cent of the former to 8-49 per — of the latter, in the 
majority of — it was about three to sev G. L. G. 
umber of the digestive glands in Dione. —Léo Errera, 
thinking i it would be 
of glands to each flytrap of Dionwa, made a » careful examination 
in this regard. He found an average of i he to on square milli- 
lea 
de la Soc. Roy. Bot. de Belgique, Agel, 1879, p- 56 
hes 
+ Characee Americane, Illustrated and Described by 
| Tororay F. AwEn, "AM, MD., ete.—-This work is published by 
