360 Fraser . — The Ascocarp in Lachnea ster corea, Pers. 
EXPLANATION OF FIGURES IN PLATES XXIX AND XXX. 
Illustrating Miss Fraser’s paper on Lachnea stercorea. 
Fig. 1. ( a ) Fresh spore; (6) spore after treatment with dung extract at 38° C. ; (c) spore 
germinating in dung extract, x 500. 
Fig. 2. Spore, treated with Na 2 C 0 3 , germinating in ascus. x 500. 
Fig. 3. Portion of mycelial hypha, showing nuclei and granules on transverse wall, x 1300. 
Fig. 4. Very young archicarp ; fresh preparation, x 1000. 
Fig. 5. Rather older archicarp ; fresh preparation, x 500. 
Fig. 6. Section of older archicarp before formation of trichogyne. x 600. 
Fig. 7. Archicarp with developing trichogyne. x 600. 
Fig. 8. Section of rather older archicarp, trichogyne still unicellular, but cut off from the 
ascogonium by a wall, x 1000. 
Fig. 9. Section of uncovered ascogonium with fully developed trichogyne. x 1000. 
Fig. 10. Longitudinal section of young ascocarp; ascogonium just beginning to branch, and 
trichogyne still exposed at exterior, x 600. 
Fig. 11. Transverse section of young ascocarp, showing branching ascogonium, and antheridium 
continuous with terminal cell of trichogyne. x 600. 
Fig. 12. Longitudinal section of young ascocarp, antheridium cut transversely and continuous 
with terminal cell of trichogyne, into which most of its nuclei have passed, x 600. 
Fig. 13. Section of young ascocarp showing antheridium and archicarp cut longitudinally. 
The ascogonium is branching, and the antheridium is continuous with the terminal cell of the 
trichogyne, but contains degenerating nuclei, x 600. 
Fig. 14. Section showing parts of an ascogenous hypha, ascogonium and basal cell, and some 
vegetative cells, x 1300. 
Fig. 15. Group of ascogonial nuclei, with a large fusion nucleus showing two nucleoli. x 2700. 
Fig. 16. Fusion nucleus, showing nucleoli in process of fusion, x 2700. 
Fig. 17. Group of nuclei from a young ascogonium (Fig. 9), showing fusion of nucleoli, 
x 2700. 
Fig. 18. Trichogyne attached to a nearly empty ascogonium ; its terminal cells continuous with 
an antheridium, and both contain nuclei, x 1000. 
Fig. 19. Section through ascocarp at time of fusion in ascus; the archicarp is still visible, the 
ascogonium is nearly empty, as are the lower parts of the ascogenous hyphae, the contents of the 
trichogyne are blackened, x 300. 
Figs. 20-22. Stages in development of asci at ends of ascogenous hyphae. x 1300. 
