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A TEXT-BOOK OF BOTANY. 



. A 



FIG. 149. Various types of glandular hairs. Unicellular hairs on Julocroton fus- 

 cescens (A), Croton monanthogynus (B). Uniseriate uni-glandular hairs on Zollikoferia 

 nudicaulis (C), Silene villosa (E), Geranium favosum (K), Boerhaavia repens (M). Glandular 

 hairs with two-celled heads on Hes peris glutinosa (D), Pityrodia salvifolia (F), Cyclamen 

 persicum (H), Lysimachia Nummularia (J), Chenopodium Botrys (L), Diospyros Kaki (O). 

 Glandular hairs with four-celled heads o Humulus Lupulus (G), Bosivellia papyrifera (V), 

 Humulus Lupulus (Y). Glandular hairs with five-celled heads on Combretum aculeatum (Z), 

 Humulus Lupulus (Y). Glandular hairs with six-celled heads on Rhododendron Dalhousia 

 (X), hair characteristic on the Phaseolea (U). Glandular.hairs with eight-celled heads on 

 Lavandula vera (W). Glandular hairs with multicellular heads on Pieris floribunda (N), 

 Begonia caroliniczfolia (S), Begonia pretoniensis (s). Glandular hairs with four and eight 

 cells respectively on Picramnia coccinea (P). Glandular hairs with two and four cells re- 

 spectively on Cistus ladaniferus (R). Double glandular hair on Rhododendron lanatum (T) 

 Adapted from Solereder and redrawn by Hogstad. 



