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A-V 



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\ KK wrii (.11 oi»i:\ 



'Ihc l)nintli (<t Hfjiniliii floccnsn, slinwii natural sizt' uImai-, lias Icrii lut <)i)C'n li'iij^tliwisc tc) 

 show the suitulcnt, waU-ry inti-rior, the covt-ririK of lonfj, white hairs, the spines concealed 

 amonj; the hairs, and a fruit on the ]eft side. '1 he ])rincipal vakie ')f these liairs to the 

 plant is i)rol)al)ly to prevent excessive transpiration of moisture, under the powerful 

 ini<l-ilav sun wh<.se cfrccl is incrcascil Iiv the rariCicd at uk sphere of the hi^;h plateaus. 

 (FiK. 5.1 



