for the Microscope. 5 



merable other flowers, afford a great variety in cell form 

 and colouring, but their beauty is greatest when examined 

 in the fresh state. 



20. SIMPLE HAIRS OF PLANTAIN (Plantago major}. 

 The simple hairs of the common broad-leaved Plantain 

 may be taken as an example of a very usual form of 

 vegetable hair, which is simple, cylindrical, and slightly 

 attenuated upwards. 



21. FORKED HAIR OF SHEPHERD'S PURSE (Capsella 

 bursa-pastoris). The majority of cruciferous plants have 

 more or less branched hairs. In the present instance 

 they divide about half-way of their length into two parts, 

 which spread from each other in a forked manner. (PL I., 



fig. 22.) 



22. FORKED HATROFHAWKBIT(Z^^;?/^<?/J//^^). 

 Many of these hairs are only forked as in the last example, 

 but some of them are divided into three branches, all 

 springing from the same point, and divergent. (PI. I., 

 fig. 19.) 



23. PELTATE HAIR OF CHRYSANTHEMUM. Peltate 

 hairs are not uncommon, usually with a short stem, bearing, 

 as in this instance, at right angles, a slender straight hair, 

 attached at the centre like the needle in the mariner's 

 compass. Some disc-like scales in other plants are also 

 attached in a similar manner. (PL I., fig. 4.) 



24. TUFTED HAIR OF GUELDER ROSE (Viburnum 

 opulus}. These large hairs are almost visible to the naked 

 eye, studding the under surface of the leaf like silver stars. 

 Seen from above they have a stellate appearance, but are 

 really tufts of simple hairs, which may be united at the 

 base, but are not so truly stellate as in the following 

 instances. (PI. I., fig. 3.) 



25. STELLATE HAIR OF VIRGINIA STOCK (Makolmia 

 maritima). The stellate hairs of this common garden 

 plant have usually four rays, but the number of rays in 

 stellate hairs constantly vary on the same leaf. (PI. I., 

 fig. i.) 



26. SILICIOUS HAIR OF DEUTZIA (Deutzia gradtis).-* 

 These hairs are silicious or flinty, and by care the organic. 



