INTRODUCTION TO CRYPTOGAMIC BOTANY. 



405 



which is remarkable for its hispid apothecia, occurs at the Cape 

 of Good Hope. Pyxine requires a warm temperature. 



Fig. 85. 



a. Ozocladium Leprieurii, Mont., from above and below witli asci. 

 Magnified. Communicated by Dr. Montagne. 



b. Section of apothecium of Oyrophora cj/Undrica, Moug. and Nest., 

 No. 69. 



c. Ditto of Umhilicaria pustulata, with asci and paraphyses.* Moug. 

 and Nest., No. 60. All more or less magnified. 



5. CoccocARPEi, Mont. 



Disc expanded, orbicular, springing immediately from the 

 medullary stratum, without any excipulum. 



442. In this small group there is either no excipulum at all, 

 or one confounded with the sparing thallus. In some cases the 

 whole plant is little more than a mass of fructification, para- 

 sitic upon other Lichens, and continuous with their substance, 

 like true parasites. They are parasitic on the crust, hyme- 

 nium, &c., and seem to be as truly Lichens as the plants at 

 whose expense they live. Several species have been found in 

 England, which were long overlooked as mere stains, or re- 

 garded as obscure ill-developed fruit. The Abrothallus, however, 

 of Sticta fuliginosa is possessed of some beauty, and is an 

 important addition to our Lichens. Though consisting almost 

 entirely of fruit, Abrothallus and Scutula produce pycnidia, 



* I find'one or more horizontal divisions in the sporidia, and some- 

 times a second imperfect sporidium in the same ascus. 



