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Wild blackberry is the common name of <I>Rubus allegheniensis</I>. It is a long cluster variety. The fruits are thimble shaped, sweet, and dull colored.

Wild Blackberry

Wild blackberry is the common name of Rubus allegheniensis. It is a long cluster variety. The fruits…

Illustrated is a herbarium sheet of <i>rubus villosus</i>.

Herbarium Sheet

Illustrated is a herbarium sheet of rubus villosus.

"Raspberry (Rubus idaeus, order Rosaceae), being fertilized. A, Flower. p, p, Petals. a, a, Anthers. s, Stigma. no, Nectary openings. nc, Nectar Cells. D, Drupels." &mdash; The Encyclopedia Britannica, 1910

Raspberry Fertilization

"Raspberry (Rubus idaeus, order Rosaceae), being fertilized. A, Flower. p, p, Petals. a, a, Anthers.…

Pictured is a sheet of Link's <i>rubus argutus</i>. It is in the herbarium in Berlin.

Rubus Argutus

Pictured is a sheet of Link's rubus argutus. It is in the herbarium in Berlin.

Pictured is Linnaeus' sheet of <i>rubus canadensis</i>, Canadian blackberry. It is a thornless blackberry.

Rubus Canadensis

Pictured is Linnaeus' sheet of rubus canadensis, Canadian blackberry. It is a thornless blackberry.

Pictured is Willdenow's specimen of <i>rubus inermis</i>. It is preserved in Berlin.

Rubus Inermis

Pictured is Willdenow's specimen of rubus inermis. It is preserved in Berlin.

Pictured is Aiton's sheet of <i>rubus villosus</i>, preserved in London.

Rubus Villosus

Pictured is Aiton's sheet of rubus villosus, preserved in London.