1310.] Monthly Botanical Report. 617 
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MONTHLY BOTANICAL REPORT. 
HE phenogamic plants contained in English Botany for April, May, and June, are Chara 
gracilis, the Chara minor caulibus et foliis tenuissimis of Vaillant. Dr. Smith acknows 
ledges that he mistakenly considered this plant, in his Flora Britannica, as the Chara vulgaris, 
in a naked or unincrustated state. ‘The doctor never shews his love of the science better 
than when he thus readily confesses the errors which he may have fallen into, as indeed we 
ever observe him inclined to do, 
Avena planiculmis, of Schrader’s Flora Germanica, discovered in 1807 by Mr. George Donn, 
on rocks upon the summits of the highest mountains of Clova, Angusshire. 
Peucedanum Si/aus. It is here observed that the seed of this species hardly having any 
border, it but imperfectly answers to the generic character. To usit appears that the whole 
natural order of umbellate requires a revision ; many of the species, as now arranged, differ 
very much in the form of their fruit from one another in the same genus. The division which 
Linnzus adopted from Astedi according to the involverum, general and partial, does not seem 
tous very favourable to a natural arrangement of the species under their proper genera, ner 
indeed is this part sufficiently constant in all to serve the purpose of a merely artificial divi- 
sion, without frequent liability to error. 
Jupcus lempocarpus of Ehrart, one of the species which Linnzeus contour together under 
his name of articulatus, a name which Dr, Smith proposes to drop altogether, as it included 
not only three distinct species indigenous to this conntry, but also one American. This isa 
_ large kind of jointed rush with shining dark brown seed-vessels. 
Juncus obtasiforus ; another jointed rush, readily distinguished from the last Bont its pale 
_ coloured, more branched, and entangled panicles, and having the ultimate branches stfongly 
rellexeds ,, Mr. Davies fas accurately distinguished these speties and acwtifforus in the tenth 
volume‘, ‘he Linnwan Transactions. The latter has been before fame in English botany, 
under tc name of articulatus. 
Papaver somniferum , foundon the banks of all the fen ditches in the low parts of Norfolk 
and Cambridgeshire, if the soil be sandy. This species is cultivated, not only as mentioned by 
Dr, Smith, for the sake of its half-ripe capsules, an infusion of which proves a gentle opiate 5 
but even opium of a good quality has been in this country collected from it, and it has been 
much recommended of late to be cultivated for the sake of the seeds, from which an oil is ex- 
tracted not greatly inferior to olive oil. 
Brassica Nassus 3 rape or cole-seed, cultivated for the sake of the oil which is used parti- 
cularly by the wool-combers, Tiiis plantis new so perfectly naturalized, that it is very com-~ 
monly found in a wild state, though supposed by Ray not to be indigenous, 
Arundo Calamagrostis Misled by Linnzus’s synonyme, Hudson and Withering applied the 
_name of Epigcios to this species; an error which has spread wide among English botanist 
And although this mistake has been long ago set right, yet from a wrong figure having been 
annexed to the description of A. Calamagrostis, at p. 403 of English Botany, it is supposed 
that many young botanists may still have been puzzled about these piants. But as a good 
figure of the last mentioned species is now given, and also a new page of letter-press for 
pl. 403, the business isin a fair way of being at. last settled satisfactorily. 
Arundo stricta of Schrader, discovered in June 1807, by Mr. George Donn, ina marsh 
called the White Mire, a mile from Dorfar. It i isy Dr. Smith observes, ‘* next axin to the 
foreign Agtostis arundinacea, which is likewise surely an Arando, as Linnzus origivally, and 
Schreder recently, has made it.” 
Montury Mag. No, 200, ° 4K Ulmus 
