282 



A TEXT-BOOK OF BOTANY. 



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

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

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

 hairs with two-celled heads on Hesperis gliilinosa (D), Pilyrodia salvifolia (F), Cyclamen 

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

 Glandular hairs with four-celled heads on Humulus Lupulus (G), Boswellia papyrifera (V), 

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

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

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

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

 Begonia carolinicBfolia (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 Rhodoaendron lanatum (T) 

 — Adapted from Solereder and redrawn by Hogstad. 



