ArODACHLVA I 73 



Resting bodies in greater part borne on the tips of the main hyphae; spores usually en- 

 cysting at the mouth of the pyriforni to spherical sporangia A. pyrifera 



As in .4. pyrifera, but tht- oogonial membrane distinctly punctate (?) .1. punctata 



Resting bodies in greater part borne on short, moniliform, lateral branches; spores usually 

 swarming at once on lea\ing the inriform to si)herical sporangia... 1. hrachynema 



Apodachlya brachynema (Hildh.) Pringsheim. Bcr. d. Deutsch. Bot. 

 (u'Sfll 1: 28y. 1883. 



Leplotnitns brachynema Hildebrand. Jahrb. f. wiss. Bot. 6: 261, pi. 

 16, figs. 12-13. 1867. 



Apodya brachynema (Hildb.) Cornu. Ann. Sci. Xat., Scries 5, 15: 14. 

 1872. 



Plate 59 



Main hyphae slender, the segments about4.5-8.5iJLthickand iio-i85:x 

 long on termite ants, but 4-23.4 x 20-1 50;x on corn meal agar, becoming 

 shorter near the sporangia as a rule, the protoplasm moderately dense 

 and with small refractive drops nere and there; branching rather sparsely 

 from any point on the segments, but usually near the distal end. Spor- 

 angia terminal, single or rarely two or three in a row, swollen, pyriform 

 or oval or spherical on termite ants, about 23-29ix thick and 23-46(1 long, 

 renewed by sympodial branching, opening by a distinct papilla formed a 

 few minutes before discharge of spores; papilla usually apical in the 

 longer sporangia, either apical or lateral in the short or spherical ones. 

 Spores few, about 8-20, short-oval, in our cultures nearly always swimming 

 sluggishly and aimlessly for a few minutes with two apical cilia on emerg- 

 ing, then encysting and swimming again after a rest; diameter 8.5-lOix 

 when encysted. Resting bodies (oogonia) formed plentifully on the tips 

 of short, lateral, jointed branches from the main hyphae, spherical or 

 very rarely short pyriform, 23.5-29,/. thick, smooth, dense, at first nearly 

 homogeneous, then forming a number of fat droplets and finally one 

 eccentric, conspicuous droplet as in the eccentric-egged Achlyas; wall 

 unpitted, about i.8,jl thick; the suboogonial cell (antheridium) as a rule 

 nearly spherical, at first denser than the other members of the chain, 

 then discharging its contents into the oogonium and becoming quite 

 empty before the maturation of the egg. 



Found in Chapel Hill but once, in a marsh at the foot of Lone Pine 

 hill, collection Xo. 2, F"ebruary 17, 1921. It appeared late along with Dic- 

 tyuchiis and an invading sterile fungus with bacteria on a termite. After 

 considerable difficulty it was got in pure culture and is being carried on. 

 Thaxter ('96, p. 325) reports this species and A. pyrifera from New 

 England. 



Of Apodachlya brachynema Hildelirand says that in addition to 

 the sporangia he noted at a somewhat later stage spherical cells on the 

 ends of short side branches, these cells filled with granular stuff, and 

 he suggests that they may be oogonia, though their further development 

 was not noted. He also shows (fig. 2t,) one such body on the end of a 



