Download Begonias: Cultivation, Identification, and Natural History by Mark C. Tebbitt PDF
By Mark C. Tebbitt
Begonias have huge, immense horticultural allure, are broadly cultivated in the house, and lengthening in sort, together with hardy species for the backyard and semi-hardy species for bins. it truly is no ask yourself those interesting vegetation have received this kind of following. Concise descriptions, keys, and stylish illustrations of greater than three hundred in most cases grown species and their most well-liked cultivars, are integrated. extra chapters hide their cultural historical past, cultivation, typical historical past, and distribution.
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Extra info for Begonias: Cultivation, Identification, and Natural History
Example text
Done periodically from late July to October when weevil gener al cultivation techniques larvae are most abundant. In a contained greenhouse situation biological control of the larvae with beneficial parasitic nematodes is also effective. To prevent unexpected infestations, always examine the roots of severely wilted plants for larvae and routinely tidy the greenhouse to reduce the number of potential hiding places for the adults. Whiteflies. These small, powdery white, moth-like insects infest the undersurfaces of the uppermost leaves and if disturbed fly rapidly around the top of the host plants.
In the wild, changes in chromosome number are probably important means by which new Begonia species evolve, but unfortunately, few studies have looked at the role of chromosomes in Begonia evolution. Those chromosome counts deemed reliable are included in this book at the end of each species description. ” The current classification by Jan Doorenbos and colleagues, published in 1998, recognizes 1403 species of Begonia subdivided into 63 sections. This treatment bases its findings largely on the genus begonia and its relatives the earlier classifications of Alphonse de Candolle (1864), Otto Warburg (1894), and Edgar Irmscher (1925), but its ancestry can be traced as far back as Johann Friedrich Klotzsch’s study of 1855.
Boliviensis), Baryandra, Chasmophila, Eupetalum, Gaerdtia, Lepsia (B. foliosa var. miniata), Loasibegonia, Petermannia, Platycentrum, Pritzelia (B. coccinea), Reichenheimia (B. coriacea), Ruizopavonia, Scutobegonia, Solananthera (B. radicans), Tetraphila Inflorescence racemose: Diploclinium, Parvibegonia, Petermannia, Pilderia, Quadriperigonia Male flowers with two tepals: Augustia, Chasmophila, Cyathocnemis, Diploclinium, Donaldia, Doratometra, Filicibegonia, Gireoudia, Haagea, Hydristyles, Knesebeckia (B.