Gl. Webster et al., SYSTEMATIC DISTRIBUTION OF FOLIAR TRICHOME TYPES IN CROTON (EUPHORBIACEAE), Biological Journal of the Linnean Society, 121(1), 1996, pp. 41-57
Variation in foliar trichomes in Croton (Euphorbiaceae) is reviewed, a
nd the terminology clarified by redefinitions and illustrations of ter
ms. Evolution of trichome types appears to proceed from branched (stel
late or fasciculate) hairs to simple and dendritic ones. A systematic
enumeration characterizes the trichome morphology in 36 of the 40 sect
ions, with citation of the 120 species examined. (C) 1996 The Linnean
Society of London