The gardener's magazine and register of rural & domestic improvement (1826)
Loudon, J. C. (John Claudius), 1783-1843, A. & R. Spottiswoode, printer, United States. Patent Office. Scientific Library, former owner DSI · London : Longman, Rees, Orme, Brown and Green · leaf 55
IFt. of two segments of circles( fi.g. 11. c); for March, some modi-fications of a triangle [fig. 11. d)-, for April, a square or rect- … angle (yfo-. 11. e)\ for May, a pentagon {fg. 12.fi); and soon {J^gs. 12, 13. ^ to n). The colour of the flower is shown
