LYCOGALA. 



[ 404 ] 



LYCOPODIACEvE. 



of the Mammalia, having a cavity in the 

 centre, with which comparatively few large 

 cells extending into the periphery communi- 

 cate. The capillaries are also much larger, 

 especially in the two animals last mentioned. 



The capillaries may often be well seen in 

 thin sections of the inflated and dried organs. 

 The altered structure of emphysematous 

 lungs may also be best shown by this me- 

 thod. 



BIBL. Kolliker, Mikrosk. Anat. ii. ; Rai- 

 ney, Med. Chi. Trans, xxviii. & xxxi. ; Stan- 

 nius, Vergl. Anat. 



LYCOGALA, Mich. A genus of Myxo- 

 gastres (Gasteromycetous Fungi), consisting 

 of somewhat globular bodies, verrucose on 



Fig. 427. 



Fig. 428. 



Lycopodium Gayanum. 



Fig. 427. Scale of spike with axillary sporange ; side 



view. 

 Fig. 428. The same seen from the outside. 



Magnified 20 diameters. 



Fig. 430. 



Fig. 431. 



Selaginella apoda. 



Fig. 430. Scale with oosporange. Magn. 20 diams. 

 Fig. 431. Scale with pollen-sporange. Magn. 20 diams. 



the outside, composed of a double papery 

 peridium, containing capillitium and spores, 

 growing on rotten wood, &c. L. epidendrum 

 varies from the size of a pea to that of a nut, 

 is globular when solitary, deformed when 

 growing in groups, and of a red colour. 

 L.parietinum is bluish black, and the peridia 

 do not exceed 1-20" in diam. 



BIBL. Berk. Brit. Flor. ii. pt. 2. p. 307, 

 Ann. Nat. Hist. 2 ser. v. p. 365 ; Grev. Sc. 

 Crypt. Fl. pi. 38 ; Fries, Syst. Mycol. iii. 

 79, Summ. Veg. p. 448. 



LYCOPODIACE^. This order of 

 Cormophytous Flowerless Plants, which 

 derives its name from the Lycopodia or 

 Club-mosses, is difficult to characterize in 



Fig. 429. 



Lycopodium complanatum. 

 One-third the nat. size. 



Fig. 432. 



Fig. 432. Oosporange with four large spores. Magn. 



20 diams. 

 Fig. 433. Pollen-sporange burst, containing small 



spores. Magn. 20 diams. 



