Til A XT Kit. — MONOGRAM! OF THE LABOULBENIACEjE 



387 



resent the original flagellata-Mke condition from which this series has been derived; since the species is 

 the most universally distributed form that occurs on Galerita in the western hemisphere. The anthe- 

 ridia, instead of arising terminally from special branches, occur one to three together below the septa of 

 branchlets borne on the branches of the inner appendage. The typical form of this species, which occurs 

 only in Mexico and Central America, is stout and large, sometimes more than a millimeter in length, 

 usually amber-brown throughout; although in a few instances the perithecium becomes smoky brown, 

 a condition well marked in material from Columbia and Costa Kica (Berlin Museum No. 907 and British 

 Museum No. 521). These forms, as is pointed out below, approach perhaps too closely to melano- 

 theca, which is otherwise very clearly distinguished, even when it occurs in company with the present 

 species on the same host. South of the Isthmus of Panama, however, material from Venezuela, Peru, 

 Brazil and the Argentine, shows a distinct variation from the type; the individuals approaching the 

 "ftagellata" type more closely; usually smaller, sometimes not over 300 ft in length, pale straw-colored, 

 with a contrasting black peiithecial tip, and more or less strongly marked olive-brown suffusions; never, 

 as far as 1 have seen, assuming the typical amber-brown tint. The appendages of these more southern 

 types are also usually more slender and tapering, and sometimes exceed the receptacle in length. The 

 specimens from Peru with their dark perithecia and numerous divergent branches are especially char- 

 acteristic. 



Specimens of this form have been examined as follows. British Museum: No. 521 on Galerita 

 Lecontei Dej., Costa Rica; No. 520 on Galerita sp., Mexico; No. 709 on G. Americana Linn., Volcan 

 de Chiriqui, Panama; No. 514 on G. pallidioornis Reich., Columbia: No. 70S on G. oequinoctialis Chd., 

 Ventanas, Mexico; No. 517 on G. unicolor Dej., Brazil and Forest of Santarem, Amazon, No. 518. Hope 

 Collection, No. 24G, on G. ruficollis Latr., No. 255 on Galerita sp., Venezuela; No. 257 on G. ruficollis 

 Dej., Cuba. Paris Museum No. 136 on Galerita sp., South America and Nos. 73-74, Venezuela; No. 

 160, Rosario, Argentina. U. S. National Museum, on Galerita spp., Brazil and Peru. Berlin Museum 

 No. 962 on Galerita sp., Bahia, Brazil; No. 963 on G. striata Klg., Port au Prince; No. 964 on Galerita 

 sp., Columbia; No. 965 on Galerita sp., Guayaquil, Ecuador; No. 960 on G. carbonaria Mannerh., Bra- 

 zil; No. 968 on G. pallidicornis Reich., Columbia. Occurring on various parts of the host but most 

 commonly on the elytra. 



Laboulbenia melanotheca Thaxter. 

 It is not altogether certain that this form might not better be designated as a var. melanotheca of 

 L. Mcxicana; since certain specimens on Galerita pallidicornis (?) from Columbia (Berlin Museum, 

 No. 967) and on G. Lecontei from Costa Rica (British Museum, No. 521) both of which were found grow- 

 ing at the bases of the anterior legs, seem to represent a transitional condition, and have been referred 

 to L. Mexicana rather than to the present form. Nevertheless the typical L. Mcxicana when it occurs, 

 as it sometimes does abundantly, in company with L. mclanotlicca on the same host, shows no tendency 

 to intergrade, and the two may be distinguished at once with a hand lens. Typical L. melanotheca has 

 been obtained 'as follows: British Museum, No. 521 on Galerita Lecontei Dej., Costa Rica; No. 710 on 

 G. ruficollis Latr., Nicaragua; these specimens being exactly like the type in the form and coloration 

 of their perithecia, which project at an angle to the axis of the receptacle and are furnished with slender 

 hyaline necks, the wall-cells showing a slight spiral twist. It is uncertain whether G. ruficollis here re- 

 ferred to, is the same with G. crythrodcra Brulle of which G. ruficollis Dej. is a synonym, or whether it 

 is G. ruficollis Latr. which appears to be a different form. 



Laboulbenia angularis Thaxter. Plate LXIII, fig. 16-17. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 157. Dec, 1899. 



Perithecium wholly free, symmetrically inflated, straight, evenly suffused with smoky brown except 

 the very short narrow hyaline neck-like base; the tip well differentiated, black, distally hyaline, the whole 

 perithecium inserted nearly at right angles to the axis of the receptacle. Receptacle amber-yellow or amber- 



