The potamogetons (pond weeds) of the British Isles, with descriptions of all the species, varieties and hybrids,

Issued in 15 parts, 1898-1915.

Nature-printed British ferns : being figures and descriptions of the species and varieties of ferns found in the United Kingdom /

Includes index.

Rosarum monographia; or, A botanical history of roses to which is added, an appendix, for the use of cultivators, in which the most remarkable garden varieties are systematically arranged ...

Mode of access: Internet.