apy ia Si RO a, ee eal a im ies "Pk a oa AN ae aia ie al 
360 PHARMACEUTICAL BOTANY 
elliptical and embedded in the thallus near its surface, whereas in 
Gigartina they are ovate and borne on minute stalks which 
Fic. 264.—Fucus vesiculosus. Fertilization. A, egg approached by biciliated 
sperms; B, sperms attached to egg and ee it prior to fertilization (highly 
magnified). (After Thuret.) 
project outward from the surface of the segments. Upon the 
ripening of these structures the spores are discharged into the sea 
Fic. 265.—Chondrus crispus. (After Strasburger.) 
water. These sooner or later germinate into new Chondrus or 
Gigartina organisms. 
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