This section is from the book "The Fruit Manual: Containing The Descriptions And Synonyms Of The Fruits And Fruit Trees Of Great Britain", by Robert Hogg. Also available from Amazon: The Fruit Manual.
All the varieties of cultivated cherries will be found to consist of eight races, into which I have arranged them : -
II. The pale-coloured, sweet cherries, with tender and translucent flesh and skin, I have distinguished by the name of Red Geans.
III. Dark-coloured, sweet cherries, with somewhat of the Bigarreau character. Their flesh is not so firm and crackling as that of the Bigarreaus, but considerably harder than in the Black Geans, and these I propose to call Black Hearts.
IV. Includes the White Hearts or Bigarreaus, properly so called, with red or light-coloured mottled skin, and hard crackling flesh.
V. Those having a dark skin and flesh, and deeply-coloured juice, are called Black Dukes.
VI. Embraces all those nearly allied to the Black Dukes, but with pale red, translucent skin and flesh, and uncoloured juice; they are, therefore, distinguished as Red Dukes.
Branches, rigid and spreading, forming round-headed trees. Leaves, long, waved on the margin, thin and flaccid, and feebly supported on the footstalks. Flowers, large, and opening loosely, with thin, flimsy, obovate, or roundish ovate petals. Fruit, heart-shaped, or nearly so. Juice, sweet.
§ Fruit obtuse, heart-shaped. Flesh tender and melting. * Flesh dark; juice coloured. - Black Geans.
Knight's Early Black
** Flesh pale; juice uncoloured. - Red Geans.
§§ Fruit heart-shaped. Flesh half-tender, firm, or crackling. * Flesh dark; juice coloured. - Black Hearts.
Bigarreau Noir Hatif
Bigarreau Noir de Schmidt
Buttner's Black Heart
Early Black Bigarreau
** Flesh pale; juice uncoloured. - Red Hearts or Bigarreaus.
Belle de Rocmont
Bigarreau de Hildesheim
Bigarreau de Hollande
Bowyer's Early Heart
Drogan's White Bigarreau
Drogan's Yellow Bigarreau
Early Red Bigarreau
Tardive de Mans