Y8 



Pl.ANT STUDIES 



Fig. 70. An alpine willow, sliowing a strong rootstock developing aeriiil branches 

 and roots, and capable of long life and extensive migration. — After Schimpep.. 



itself into such relutioiis tluit it iiui)' seciiro jiollina-tinii. 



Bosidcs pollinat inn. 



wlui'li is iicccssa.ry 



to ilic prodiicf inn <if 



seeds, lliero must lie 



an aiTanLTeiiieut fur 



seed d isl I'ilttit inn. 



It is always well fur 



sei'ils in l)e scattered, 



sii as to lie se|iarate(l 



friiiii niie aiMillier 



and from llie jiarent 



]il an I . Til e t wo 



„..,,„ , , ■ ., f , , ixreal e.xleriial iinili- 



Fia. U. .'\ llowcr of peony, phowmgthe fniii' srts (if '^ J- 



floral oig;iiis : /■, the sepals, together called llie lelllS ill eiinueetiuU 



calyx ; c, the petals, together called the corolla ; w i i ]i f li o fl o Av e r 



a, the numerous stamens ; g, the two carpclfe, '' 



which contain the ovules.-Aftcr STRASEURoEit, tlicrefore, are pclli- 



