20 REVIEWS. 
a single line only to those species, respecting the situations and 
degree of rarity or frequency of which no further information 
than is contained in the ‘ Flora’ appears necessary to be given, 
or has been obtained. This line contains, on the left-hand side, 
the number and name under which the species stands in the Ca- 
talogue of British Plants published by the Botanical Society of 
London, with an abbreviation of the name of the original autho- 
rity for the latter. Next is placed one or other of the series of 
terms used to express the degree of citizenship of the species, so 
far as can be judged from the evidence which has been obtained, 
viz. native, denizen, colonist, alien, and incognit, from ‘ Cybele 
Britannica,’ vol. 1. p. 63.” 
The author supplies a general summary of the Flowering Plants 
and Ferns, from which it appears that there are 1155 species of 
the former and 53 of the latter; but he makes a deduction of 
73 flowering plants and 8 See which are certainly erroneous, 
or cannot = received with confidence as Yorkshire plants. Of 
the remaining 1082 flowering plants, 31 are only naturalized, 
and not included in the London Catalogue; and one, Salix 
acutifolia, has been discovered since it was printed. So that 
out of 1445 Shear plants enumerated in the Catalogue, 1051 
species, or 724 per cent., and out of 60 ferns, 45 species, or 75 
per cent., now inhabit Matkhiees Deducting ‘te above species, 
the eareaied is reduced to 714 per cent., or 1001 to 1339. 
Of flowering plants, the natives are . . . 893 
Denizen (established) 2 Marte (aS ee 
Colonist (depending on Pees sul) pre 
1001 
The following are the types of distribution of the flowering 
plants :—British, 542; English, 272; Scottish, 51; Highland, 30; 
Germanic, 29; ees i; local, or doubtful, 25. 
The ferns are 25, 5, 4, 6, 38, 2, respectively. See Sup. p. 14. 
The plants universally distributed over Britain, or, in the 
geographical term, having their type of distribution universal, are 
567. 
Those belonging to-the austral type, or which do not usually 
extend northwards further than Yorkshire, are 317. 
Those belonging to the boreal type, 91; local, 26. Total,1001. 
Three are aly, known as Yorkshire plants, viz. Polygala uli- 
