44 



INTRODUCTION TO CIIYPTOGAMIC BOTANY. 



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

 production in the shape of buds. 



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

 always rejDroduce the plant immediately, even in plants of such 

 a low gi-ade as Fungi. In the higher Fungi, certain cells 

 swell and become clavate, jDroducing 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 gelatinous 

 fungus, which is so common on Jumper, Podisoma (Fig. (ia), 

 the bodies I have represented are very like these sporophores 

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

 are remarkable for germinating at definite points. The 



A2. 



Fig. 14. 



a. Germinatiug spores oi Neplirodium marginale. 



b. Prothallus of Gymnogramma chrysophyUa, as seen from below, 

 shewing tbe antheridia and arcliegonia. 



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



333. 



* Tulasne in Ann. d. Sc. Nat. Ser. 3, vol. xix. p. 193. 



