Eumycetes. 523 



of the perithecium and of its apex, and the dark continuous axis 

 formed by the receptacle and main appendage, are characteristic 

 of the species. 



Lahoulbenia Lathropbii, on Lathropinus fiüvipes Er., nearly 

 allied to L. Oedodactyli, and distinguished by its enormously elon- 

 gated outer appendage and spirally twisted, longitudinall}^ striate 

 wall-cells. L. hemipteralis, on Velia Platensis Berg. L. Veliae, on the 

 same host, remotely resembling L. ceratophova and its allies. L. 

 Lacticae, on Lactica varicornis Jac. L. Blechri Speg., on Blechriis sp. 

 L. Monocrepidii, on Monocrepidius sp. L. fuscata, on PterosHchus sp. 

 L. gramdosa, on Argutor Bonariense Dej., bears a distant resem- 

 blance to L. scelophila, but is distinguished by its more slender 

 abruptly curved appendages and the blackish powdery granulations 

 of its suffused portions. L. siibivßata, on the same host, distinguis- 

 hed from L. polyphaga by its perithecium, appendages and inflated 

 subbasal cell. L. Bonariensis, on the same host. L. lutescens {L. fu- 

 niosa Speg.), on the same host. L. asperata, on Tachys sp., nearly 

 allied to L. Tachyis and to L. tnarina Picard, but differs from both 

 in the characters of its appendages and insertion-cell, as well as 

 by the characteristic external roughening of the outher basal wall- 

 cell of the perithecium. L. aiistralis, on Apenes sp., somewhat simi- 

 lar to L. Oopterij but differs in its characteristicall3'- and more 

 strongly curved perithecium, and in the absence of dark septa in 

 the outer appendage, the basal cell of which is never as highly 

 developed in the present species. L. flexata, on Brachinus sp., a 

 form of the L. texana-group. L. inflecta, on Galerita sp., resembles 

 small forms of L. punctata, but differs in- the complete absence of 

 maculation, as well as in other minor points. L, marginata, on Ga- 

 lerita Lacordairii. L. sovdida, on Galerita sp., most nearly related 

 to L. perplexa, from which it is best distinguished b}'' the short 

 coherent primary appendages, short branches, and numerous paired 

 antheridia. L. Heteroceratis, on Heteroceras sp. L. funeralis, on Gyri- 

 uns sp., very closely allied to L. Gyrinidarum , from which it differs 

 more especially in its smaller size, in the color and conformation 

 of its basal and subbasal ceils, which have no yellow-brown tint, 

 are similar and subequal; both being much longer than broad; in 

 the marked prominence below the perithecium, the tip of which 

 is not distinguished even on the inner side, as well as by its ter- 

 minal usually furcate apical appendage. 



Rhachomyces Argentinus, on Casnonia sp., most nearly allied 

 to R. javanictis, from which it is distinguished by its more slender, 

 copious and closel}'- appressed appendages, which conceal the axis 

 of the receptacle distally, as well as by the somewhat pointed apex 

 of its perithecium. 



Scaphidiomyces nov. gen., with 5. Baeocerae, on Baeocera sp., 

 appears to be related to the Compsomycetaceae. The perithecium 

 has but a Single stalk-cell; the alternate production of branches and 

 perithecia, and their association on the indeterminate secondary 

 axis, have no parallel in any other genus. 



Scelophoromyces nov. gen., with S. Osorianus, on Osorius sex- 

 piinctalics Bernh. and O. sp. 



Ecteinomyces. The genus Hydrophiloniyces is united with this 

 genus. E. filarius, on Coproporus rutihis Er. E. Thinocharinus, on 

 Thinocharis exilis Er. E. Copropori, on Cropoporus rutilus. 



Aiitoicomyces hicornis, on Berosus sp., distinguished b}'' its pai- 

 red perithecial appendages. 



