Beitrage zur Bluthenbiologie der Cruciferen, Crassulaceen und der gattung Saxifraga

Pp. ix, 97; 11 full-page plates with a total of 319 individual line drawings, each plate with a facing descriptive leaf of text. Early brown cloth, lettered in gilt on the spine, gray-patterned endpapers, sm folio (12 1/2 x 9 1/4 inches). From the series: Bibliotheca Botanica, heft 58. The title of this monograph translates as: “Contributions to the Biology of Cruciferen, Crassulaceae and the species Saxifraga.” The Crassulaceae, also known as the stonecrop family or the orpine family, are a family of dicotyledons with succulent leaves. Saxifraga is the largest genus in the family Saxifragaceae, containing about 440 species of Holarctic perennial plants, known as saxifrages or rockfoils. Most saxifrages are smallish plants whose leaves grow close to the ground, often in a rosette; there leaves typically have a more or less incised margin; they may be succulent, needle-like or hairy. No ownership marks and no signs of use.