368 The North American Cup-Fungi 



Apotheciis erumpentibus; ascis clavatis; sporis muriforniibus. 

 Type species, Cenangium Sequoiae Plow. 



1. Murangium Sequoiae (Plow.) Seaver, comb. nov. 



Cenangium Sequoiae Plow.; Phill. Grevillea 7: 23. 1878. 

 Scleroderris Sequoiae Sacc. Syll. Fung. 8: 596. 1889. 



Apothecia erumpent through the crevices of the bark, usually 

 in linear groups, often congested, turbinate, at first closed, open- 

 ing with an irregular aperture; hymenium concave, or nearly 

 plane; asci very broad-clavate, reaching a length of 140 ju and a 

 diameter of 30-40 ^i, 8-spored, tapering abruptly into a stem-like 

 base; spores irregularly disposed in the ascus, broad-ellipsoid, 

 the contents granular, becoming 1-3-scptate, then muriform, 

 16 X 33-36 jx; paraphyses filiform. 



On bark of Sequoia gigantea and Juniperus virginiana. 



Type locality: California. 



Distribution: South Carolina and California. 



ExsiCCATi: Ellis, N. Am. Fungi 671; Rav. Fungi Am. 634. 



13. TYMPANIS Tode, Fungi Meckl. 1: 23. 1790; Fries, Syst. 



Myc. 2: 173. 1822. 



Apothecia erumpent as in Dermea, single, or cespitose, 

 usually hard and coriaceous, dark-brown, or black; hymenium 

 concave to plane at maturity; asci clavate, filled with numerous 

 spermatoid, spore-like bodies; paraphyses filiform. 



Type species, Tympanis saligna Tode. 



The genus Tympanis comprises a number of species in which 

 normal ascospores are absent or undeveloped. Ascospores some- 

 times develop in addition to the spermatoid bodies in which case 

 the species is transferred to some other genus depending upon the 

 nature of the ascospores (see DiirandieUa Fraxini); the species 

 listed here are those in which no definite ascospores have been 

 observed. 



On coniferous hosts, Pinus, Abies. 1. T. Pinastri. 

 On nonconiferous hosts. 



On species of Alnus. 2. T. ahiea. 



On species of Populus. 3. T. spermatiospora. 



On Oxydendruni. 4. T. Oxydendri. 

 On miscellaneous hosts. 



Spermatoid bodies .5 X 1-2 ^l. 5. T. conspersa. 



Spermatoid bodies 1.5 X 4-5 ^x. 6. T. fasciculata. 



