44 



INTRODUCTION TO CEYPTOGAMIC BOTANY. 



of Phssnogams, which, at times, are equally capable of re- 

 production in the shape of buds. 



31. The spores, or what have the appearance of spores, do not 

 always reproduce the plant immediately, even in plants of such 

 a low grade as Fungi. In the higher Fungi, certain cells 

 swell and become clavate, producing on their surface a number 

 of little points, each of which is terminated by a spore. In 

 Tremella, this clavate swelling has much the appearance of 

 fruit, but the points upon its surface are greatly elongated, 

 and true fruit at last is produced. In certain cases, these spores 

 produce from their surface minute processes, supposed by 

 Tulasne* to be male organs. These can only be seen with a 

 nice adjustment of the light. Their existence has been verified 

 by myself and Mr. Broome ; their functions, however, at 

 present must be considered doubtful. In the gelatinotxs 

 fungus, which is so common on Juniper, Podisoma (Fig. 6a), 

 the bodies I have represented are very like these sporophores 

 in Tremella, but they germinate truly Uke other spores, and 

 are remarkable for germinating at definite points. The 



Fig, 14. 



a. Germin.iting spores oi Nepltrodium marginale. 



b. Prothalliis of Gymnogramma chrysophylla, as seen from below, 

 shewing the antheridia and archegonia. 



From Henderson in Mag. of Zool. and Bot. vol. i. p. 333. 



* Tulasne in Ann. d. So. Nat. S6r. 3, vol. xix. p. 193. 



