458 Rev. M.J. Berkeley and Mr. C. E. Broome on British Fungi. 



represented by Corda and confirmed by ourselves. Endotrichum 

 of Corda again has a close external resemblance, but a glance at 

 the figure and description shows clearly that they cannot belong 

 to the same genus. Labrella punctum, Corda^ may also be com- 

 pared with it. The extremely close external resemblance of ob- 

 jects belonging to as many very difi*erent genera would make a 

 nice subject for amplification to those who adopt the notions pre- 

 valent with some of the transformation of species. 



Plate XII. fig. 10. a. Plant nat. size ; b. ditto magnified ; c. portion 

 highly magnified ; d. spores magnified 340 diameters. 



449. Coryneum compactum, n. s. Minutum primitus tectum 

 sero denudatum; sporis late fusiformibus obtusiusculis_, nucleis 

 concatenatis. On dead twigs of elm^ Wraxall, Som., March 1845. 

 It occurs also in Upper Carolina on Betula rubra. 



Forming minute scattered pustules at first quite covered by 

 the cuticle, at length exposed. Stroma convex ; spores pedun- 

 culate, widely fusiform, slightly obtuse, 4-5 -septate, nuclei large, 

 connected with one another. 



This species bears nearly the same relation to Stilbospora py- 

 riformis that the next does to S. angustata. The nuclei are con- 

 nected with one another after the fashion of the eudochromes of 

 Sirosiphon ocellatus, Kiitz., Saccothecium Cornij Mont., Helmin- 

 thosporium Hoffmanni, Berk, and Curt., and some others. The 

 shape of the spores is very much that of the same organs in 

 Hymenog aster griseus, Tul. 



450. C. disciforme, Kze. Myc. Heft 1. p. 7Q. On dead twigs 

 of birch, woods near King's Cliffe. 



b. ellipticum, Berk. & Br. Magnum transversum ; stromate 

 elliptico crasso pulvinato, sporis pedunculatis multiseptatis fusi- 

 formibus ; endochromatibus ut plurimum biguttatis. On trunks 

 of birch-trees, King's Chfiie. 



Bursting transversely through the bark, large, elliptic, pulvi- 

 nate ; stroma thick, white, black towards the edges, consisting 

 of closely-packed elongated cells ; spores fusiform, multiseptate ; 

 articulations slightly constricted ; endochromes granular, con- 

 taining generally two transversely arranged globules. 



We were at first inclined to consider this a new species, but 

 specimens exactly agreeing with Corda's figure have since oc- 

 curred on smaller twigs, which exhibit occasionally two globules 

 in the endochromes, and we now regard it merely as a very highly 

 developed form. 



451. C. microstidum, n. s. Tectum; stromate obsoleto ; sporis 

 minutis breviter lanceolatis 2- 3-septatis. Sporocadtts rosacohj 

 Bab. no. 1166. On dead twigs of rose, vine, Ketriajaponica, 

 &c. Sent by Mr. Stephens, Mrs. Hussey, &c. 



