British Lahoulbeniaceae. Winifrede L. Hake. 79 



D. hybridus Thaxt. in Proc. Amer. Acad, xxxv (1900), p. 423; Mon. (1908), 

 p. 253, pi. XXXI, figs. 15-19. 

 On Philonthus -centralis Grav. Ealing. B.M. Xo. 360. 



There are three specimens on the shde show'ing only one t^.-pe of perithecium 

 without the ear-like outgTo\rths characteristic of the smaller kind. 

 D. biformis Thaxt. in Proc. Amer. Acad, xxxv (1900), p. 422; Mon. (1908), 

 p. 254, pi. XXXIII, figs. 1-5. 

 On Philonthus umbratilis Grav. Leicester. B.M. No. 362, 

 There is only one specimen on the slide which is stated to be immature. 



CHITONOMYCES. 



C. melamtrus Pe>-r. in Sitz. k. Akad. Wissen. Wien, lxviii, Abt. i, 8 (1874). 

 p. 250, pi. Ill, figs. 30-34; Thaxt. Mon. (1896), p. 289, pi. xxvi, fig. 19; 

 Proc. Amer. Acad, lii (1916), p. 4. 

 On Laccophilus viinutus Sturm. England. B.M. Xo. 487. Co-t>-pe. 

 In all six specimens no appendages are present except that in one case 

 broken remains of one are seen on the terminal cell of the receptacle. 

 C. paradoxus (PejT.) Thaxt. in Proc. Amer. Acad, xxvii (1893), p. 32. Heima- 

 tomyces paradoxus Peyr. in Sitz. k. Akad. Wissen. Wien, lxviii, Abt. i, 8. 

 (1874), p. 251, pi. Ill, figs. 35-39; Thaxt. Mon. (1896), p. 287, pi. viii, 

 figs. 17-21. 

 On Laccophilus minuius SturTa.. England. B.M. Xo. 487 bis. Co-tj^e. 

 Of the seven specimens, one shows the characteristic horn-like outgrowth 

 of the perithecium particularly well. 



MONOICOMYCES. 



*M. Brittaniciis Thaxt. in Proc. Amer. Acad. xxx\' (1900), p. 413; Mon. 

 (1908), p. 269, pi. xxxv, figs. 3 and 4. 



On Homalota insecta Thorn. Paisley. B.M. Xo. 455. Co-t}-pe. 



The shde in the collection has four specimens. 



" This species is nearly related to M. Homalotae and may prove only a variet}*. 

 It differs in its more slender form and apparently also in the characters of the 

 primary- appendage, but more abundant and better material is needed to 

 determine to what extent these characters are constant." 



HAPLOMYCES. 



H. Texanus Thaxt. in Proc. Amer. Acad, xxviii (1893), p. 160; Mon. (1896), 

 p. 270, pi. vii, figs. 5 and 6; Mon. (1908), p. 275. 



On Bledius opacus Bloch. Isle of Wight. B.M. Xo. 448. Co-t}^e. 



There are two specimens on the slide, one very perfect showing the "spme- 

 like process" of the antheridium. 



EUHAPLOMYCES. 



*E. Ancyrophori Thaxt. in Proc. Amer. Acad. xxx\ai (1902), p. 25; Mon. 

 (i9o'8), p. 281, pi. xxx\^I, figs. 19-21. 



On Aiicyrophorus aureus Fauv. Dumfriesshire. B.M. Xo. 1091. (Sharp 

 collection.) 



There are two species on the slide. 



CANTHEROMYCES. 



*C. Plaiystethi Thaxt. in Proc. Amer. Acad, xxxv (1900), p. 415; Mon. (1908), 

 p. 282, pi. xxx\-ii, figs. 5-6. 



On Platystethus cormdus Grav. Kilbum. B.M. Xo. 449. Co-type. 



Three specimens are mounted on the shde, one perfect, showing a perithecium 

 and a small antheridium. 



"This species is most nearly related to C. occidental is, which it closely re- 

 sembles in general form. It is distinguished however by the greatly reduced 

 antheridium which can hardly be made out in mature specimens, as well as 

 by the distal enlargement of basal cell of the appendage." 



