Fig. 24. — Pleurage curvicolla. Hyphal f visions in young mycelia. Spores sown in a hanging drop of 

 dung-agar, the mycelia drawn with the camera lucida 31 hours later. The mycelium a is united : 

 with the mycelium b by a hypha-to-hypha fusion at o ; with the mycelium c by two hypha-to-peg 

 fusions at p and q ; and with the mycelia d and e by other fusions which took place at r, s, and t. 

 The mycelium b is united with the mycelium / by a hypha-to-hypha fusion at u and with the 

 mycelium g by a peg-to-peg fusion at v. At w can be seen two pegs which ceased growth before 

 they met, the arrest of their growth probably having been caused by the near-by fusion at v. The 

 main hypha of the mycelium d was observed growing toward the uppermost hypha of the mycelium 

 c and fusing with a peg which this uppermost hypha sent out at x. A peg-to-peg fusion at y serves 

 as another connexion between the mycelia d and c. Peg-to-peg fusions can be observed connecting 

 the mycelium h with the mycelium i, and the mycelium j with the mycelium k. Among the 

 remaining hyphal fusions, we may interpret that at I as a hypha-to-hypha fusion, that at m as a 

 hypha-to-peg fusion, and that at n as a peg-to-peg fusion. Magnification, 404. 



