230 Mr. T. Moore on Glyceria fluitans and G. plicata. 
Theron tenuirostre. 'T. capite colloque castaneis, dorso humerisque 
vinaceis, pectore ochraceo, uropygio ventreque canis, cauda supe- 
riore parte tectricibusque viridibus inferiore atra apice cano tec- 
tricibus inferioribus lete castaneis et elongatis ad extremitatem 
caude, tibiis maculaque inter illos flavis remigibus scapularibusque 
atris flavo lete marginatis ; rostro flavo, pedibus rubris. 
Long. tot. 10 unc. ; tarsi 3 unc. ; ros. fron. 7 lin. 
Perdix Charltonii. P. dorso alisque superiore parte atris oleaceo- 
brunneis irroratis et maculatis, vertice nuchaque brunneis, gula 
fronte lineaque superciliari albis singulis pennarum atro apice ma- 
culatis, collo capistro ferrugineo ornato pectore lateribusque atris, 
fasciis ferrugineis, transversatis ventre maculaque post-oculari fer- 
rugineis, tibiis albidis, rostro pedibusque flavis. 
Long. tot. 12 unc.; tarsi 14 unc. ; ros. fron. ? unc. 
Rallus superciliaris. WR. oleaceo-brunneus gula alba striga superci- 
liari rufo subtus strigis atris et albis transversis alternate notatis, 
pedibus rostroque viridibus. 
Long. tot. 95 unc. ; tarsi 14 unc. ; ros. fron. 54, unc. 
XXV.—On the Glyceria fluitans and G. plicata. 
By Tuomas Moors, Esq. 
To the Editors of the Annals of Natural History. 
GENTLEMEN, 
Tr may be interesting to some of your readers to know that the 
Glyceria plicata of Fries has been determined to hold a place in 
the British flora. 
The following are the circumstances upon which this state- 
ment has been made. In the summer of 1844 I was much struck 
by the great difference in appearance between the plants of Gly- 
ceria (assumed to be G. fluitans) which surrounded one or two 
pools of water in some meadows northwards of London. The 
plants appeared to consist of two distinct forms, which grew in- 
termixed, and were so different from each other as to be detected 
on the slightest glance. One of these forms had the leaves about 
half-folded, so as to appear channeled ; at the same time, they 
were long and gradually tapermg to a fine pomt, and conse- 
quently had the appearance of being much narrower than those 
of the other form, which had (comparatively) short, flat (and 
therefore apparently broad) and obtusely-pomted leaves. Ona 
closer examination, that which may be termed the narrow-leaved 
plant was found to have large, oblong outer pales, whilst in the 
broad-leaved plant these were smaller and of an ovate form. I 
generally noticed that in plants of equal vigour the spikelet was 
eee 
96S CEO Bhs 
