138 PROCEEDINGS OP Till-: 4MEBI0AS ACADEMY. 



outward, a group of about six below t lie base of the perithecium much 

 longer than the real and curved outward in a tuft, those arising about the 

 base of the perithecium very elongate, erect, with straight blunt tips, 

 reaching nearly to the apez of the perithecium. 



Perithecda 490-450 • (about) 35 p. Receptacle 275-430^. Total 

 length to tip of perithecium 650 800 /i. Longest appendages 300 I.'IO^. 



()n Cryptobium capitatum, Paris Museum, X". 172. Brazil. 



Rhachomyces Cayennensis nor. sp. 



Perithecium rather small, yellowish, the ant. riot- margin nearly 

 Btraight, the posterior convex; the tip clearly and abruptly differentiated, 

 concolorous, asymmetrical, Bomewhat bent. Main axis of the receptacle 

 rather strongly curved, consisting of about twelve (ill-; the basal 1 

 slender, deeply suffused, those immediately above opaque Blender, the 

 rest rather large with central brown Buffusions ; tin- distal fells paler. 

 Appendages rather coarse, crowded, black brown, opaque or nearly bo, the 

 tips mostly bent outward, appressed below, somewhat divergent distallv ; 

 six or more about the base of the perithecium slightly longer than the 

 rest, marly equalling, sometimes slightly exceediu"; the perithecium in 

 length. Perithecium 120-140 X 25-30 p. Total length to tip of peri- 

 thecium about o'>0 ^ (average). Longest appendages 140 /.1. 



On Cryptobium sp. indet., British Museum No. 387. Cayenne. On 

 the inferior surface of abdomen. 



Rhachomyces stipitatus nov. sp. 



Perithecium pale straw colored becoming tinged with brownish, much 

 darker toward the tip; broadly Bubfusiform, usually symmetrical, taper- 

 ing from about the middle to tin- small blunt usually symmetrical, hardly 



differentiated, often hyaline tip: borne tree on a stalk-eell which is i ■ 



colorous, Bometimes as long as the receptacle, in other eases but slightly 

 developed. Receptacle straw colored, or faintly brownish : the main 

 axis consisting of about lifteen to seventeen cells, the septa rather oblique, 

 its distal portion, consisting of about two to four cells, erect and tree: 

 the e.lls of the secondary axis relatively large, concolorouB, tint oppos 

 the subbasal cell of the main axis bearing a long opaque blackish brown 

 appendage curved toward the receptacle ami often equalling it in length, 

 other similar appendages arising at intervals above it hut not from all 



the lower cells. b< mini: more numerous throughout the distal half and 



in some instances extending to or beyond the tip of the perithecinin even 



