Agapanthus: A Revision of the Genus by Wim Snoeijer, Royal Boskoop Horticultural Society Staff

By Wim Snoeijer, Royal Boskoop Horticultural Society Staff

Often called "lilies of the Nile" (though they're local to South Africa), the showy perennials within the genus Agapanthus were avidly amassed and grown given that they have been found by way of Dutch explorers within the seventeenth century. The few species within the genus were hybridized intensively, yielding enormous quantities of attention-grabbing and dramatic cultivars. regardless of their large attractiveness between gardeners, despite the fact that, there hasn't ever been a very complete e-book at the genus, an oversight that has ultimately been corrected by way of writer Wim Snoeijer, operating in live performance with Holland's Royal Boskoop Horticultural Society. With keys and greater than a hundred colour pictures as an relief to id, this groundbreaking publication is one no devotee of those crops can come up with the money for to be with out.

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To put it on paper is another business. Still, I hope what follows gives a clue as to how close the relations between different cultivars are. The various keys also support Ben Zonneveld’s conclusions; the relation between and the origin of some cultivars correspond remarkably with Ben’s conclusions. Classification of the Cultivars 49 Because this is an “open key,” anyone who wants to do so can add more names. 1 - leaves variegated = Table I 1 - leaves not variegated = 2 2 from 1 - flowers main colour white = 3 - flowers very pale to dark violet-blue = 4 3 from 2 - flowers single [6 tepals] = Table II - flowers (semi-)double [more than 6 tepals] = Table III 4 from 2 - flowers single [6 tepals] = Table IV - flowers (semi-)double [more than 6 tepals] = Table V Table I.

5 cm long, plants stout = A. 5 cm long, plants slender = A. campanulatus = 14 15 from 14 - perianth segments spreading widely to 90° from axis = A. campanulatus subsp. patens - perianth segments spreading to c. 45° = A. campanulatus subsp. campanulatus Nomenclature Nomenclature is still confusing, however much Leighton (1965) tried to straighten up the mess. She concluded that Agapanthus is either a genus with many species that are hardly distinct from each other, or a genus consisting of only a few species with a large variation (close reading of her publications suggests she leaned towards the latter possibility).

Caulescens - leaves 3 cm wide or less = 12 12 from 11 - leaves flaccid, perianth segments recurving markedly towards the apex = A. caulescens subsp. gracilis - leaves stiffly erect or nearly so, perianth segments not recurving markedly = A. caulescens subsp. 5 cm long, plants stout = A. 5 cm long, plants slender = A. campanulatus = 14 15 from 14 - perianth segments spreading widely to 90° from axis = A. campanulatus subsp. patens - perianth segments spreading to c. 45° = A. campanulatus subsp. campanulatus Nomenclature Nomenclature is still confusing, however much Leighton (1965) tried to straighten up the mess.

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