Show hairs of rock plants in a certain issue of the english publication knowledge there is a short paper on the hairs lialja of 0 rock plants by K X E H the glandular hairs of the saxifrage are arc described tho the three types of hairs dealt with are tile the silky or woolly hairs calra of the tha edelweiss and the like the hairs which form a felted covering to many leaves as in and alys sums and the glandular which nin ma occur r alone alona or in conjunction with ono one of the other types the hairs aro mainly protective against atmospheric coll conditions editions dit ions but the glandular hairs may in some cases serve to attract insects |