By Peter V Bruyns
ISBN-10: 1919766332
ISBN-13: 9781919766331
ISBN-10: 1919766359
ISBN-13: 9781919766355
ISBN-10: 1919766375
ISBN-13: 9781919766379
This significant and lengthy awaited two-volume monograph offers with the southern representatives of the interesting crew of succulent vegetation referred to as stapeliads. it's the in basic terms monograph at the subject released within the final sixty eight years. The e-book is the made of 25 years of study through the writer who has turn into recognized for his many courses, meticulous line drawings and fantastic images. it's lavishly illustrated with maps, line drawings and pictures.
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Additional resources for Stapeliads of Southern Africa and Madagascar Vol 1.
Example text
C = cotyledon; h = hypocotyl. A, Brachystelma austral (PVB 4420), large cotyledons with petiole, hypocotyl ± absent. B, Hoya pauciflora (PVB 5946), extremely small seeds so whole structure very small. C, Cynanchum perrieri (PVB 6227), large cotyledons but no petiole, small hypocotyl. D, Ceropegia filiformis (PVB). E, Frerea indica (PVB 5925), large cotyledons, hypocotyl enlarged. F, Orbea halipedicola (PVB 7401), cotyledons reduced, (PVB 8028), cotyledons ± absent, hypocotyl taking up almost whole embryo.
Pruinosa and Q. mammillaris, which flower at roughly the same time, so that these two probably attract different types of flies. Perhaps most significant are differences in the sizes of the pollinaria. Although smaller pollinaria than those of a particular species will readily fit into the guide-rails of that species, they will often slip right through the rails and may not be trapped. A good example of this is provided by the frequently sympatric Stapelia kwebensis and S. schinzii, which have pollinia of markedly different sizes.
42. Flies visiting a flower of Stapelia grandiflora var. grandiflora (PVB 6884, near Fort Beaufort), in cultivation in Cape Town. moths and wasps have been observed visiting the greenish- to yellow-flowered Microloma armatum (pers. ) and species of Gonolobus (Kunze 1999), while Pauw (1998) has shown that even sunbirds are able to remove pollinaria in the bright red-flowered Microloma sagittatum. Little is known of pollinators in the Secamonoideae, the subfamily that is sister to the whole of the Asclepiadoideae.
Stapeliads of Southern Africa and Madagascar Vol 1. by Peter V Bruyns
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