THE NOMENCLATURE OF ALG 309 
than any other, but that species has commonly a reddish tinge, 
the leaf-cells have thickened walls, the marginal row is 2-3 times 
larger than the next inner row, and forms a Se border 
on at least some of the leaves ; its var. gra acillima has many inno- 
variety the cuticle is minute ely s ss verruculose, also one at 
least of the Pceda bracts is generally adherent to the base of 
aa ae and the sree is sharply quadrangular almost to 
‘the base 
except in small quantity, as in the Isle of Wi ight. 
T sent a specimen of Mr. Tee plant to Herr Stephani, who 
THE NOMENCLATURE OF ALGAi. 
Motion proposing an Additional Clause to the Rules of 1905, sug- 
gested for consideration of the Brussels Congress of 1910 by the 
Botanists of the British Musewm, and others. 
Art. 194.—The Nomenclature of Alge begins with the Systema 
sae of C, A. Agardh OR. 
fixed and definite date. Agardh’s works afford the first caaens 
basis for the study and oan of Alge; moreover, his 
type-specimens:are available r examination in his herbarium at 
Lund, His Systema-is an: spite me of his own works and views 
as well as of those of his predecessors, r, Lamouroux, and 
others. Upon his herbarium and writings was based the system 
of algology subsequently developed by his son, J. G. Agardh. 
A. B. RENDL LE. W. E. St. Jonn Brooks. 
J AMES _asooge WicwiamM Fawcett. 
Gl Be Spencer M 
OORE 
A. & E. 8S. cpa ANNIE LORRAIN Smrra. 
