46 
ORGANOGRAPHY. 
BOOK I. 
Villosity (adj. villosus), when they are veiy long, very soft, 
erect, and straight, as in Epilobium hirsutum. Cri/ii (adj. 
crinitus) are this variety in excess. 
Velvet (velumeii, adj. velutinus)^ wlien they are short, very 
dense and soft, but rather rigid, and forming a surface Uke 
velvet, as in many Lasiandras. 
Tomentum (adj. tomentosus), when they are entangled, and 
close pressed to the stem, as in Geranium rotundifolium. 
Cilice (adj. ciliatus), when long, and forming a fringe to a 
margin, like an eyelash, as in Sempervivum tectorum. 
Bristles (setcB, adj. setosus), when short and stiff, as on the 
stems of Echium. 
Stints (stimuli, adj. stimulans ; pili subulati of De Candolle), 
when stiff and pungent, giving out an acrid juice if touched, 
as in the Nettle. 
Glandular hairs (pili capitati), when they are tipped with 
a glandular exudation, as in Primula sinensis. These must 
not be confounded with stalked glands. 
Hooks (hami, unci, rostella), when curved back at the point, 
as in the nuts of Myosotis Lappula. 
Barbs (glochis, adj. (jlochidatus), if forked at the apex, both 
divisions of the fork being hooked, as in the nuts of the same 
plant. 
Hairs also give the following names to the surface of any 
thing : — 
Silky (sericeus), when they are long, very fine, and pressed 
closely to the surface, so as to present a sublucid silky 
appearance : ex, Protea argentea. 
Arachnoid^ when very long, and loosely entangled, so as 
to resemble cobweb : ex. Calceolaria araclmoidea. 
Mandate, when interwoven into a mass that can be easily 
separated from the surface : ex, Cacalia canescens, Bupleurum 
giganteum. 
Bearded (harhatus), when the hairs are long, and placed 
in tufts : ex, the lip of Chelone barbata. 
Rough (asper), when the surface is clothed with hairs, 
the lower joint of which resembles a little bulb, and the upper 
a short rigid bristle : ex. Borago officinalis. 
Stellate, or starry, when the hairs grow in tufts from the 
