Ascocarp in Lachnea cretea. 
5 6 3 
EXPLANATION OF PLATES XLII AND XLIJI. 
Illustrating Dr. H. C. I. Gwynne- Vaughan’s paper on Lachnea cretea. 
PLATE XLII. 
Fig. i. Mature ascocarp. x loo. 
Fig. 2. Very early stage in development of archicarp and of investing hyphae. Uncut, x 500. 
Fig. 3. Rather older; the tip of the archicarp is growing out to form a trichogyne. Uncut, 
x 500. 
Fig. 4. Later stage of same ; development of rooting hyphae. Uncut, x 500. 
Fig. 5. Young fruit ; the ascogonial region of the archicarp is enclosed in the sheath and the 
branched trichogyne protects ; the latter is almost empty and the pads have appeared on its cross- 
walls. Uncut, x 500. 
Fig. 6. A rather older fruit, showing the elaborately branched trichogyne. Uncut, x 500. 
Fig. 7. Section showing a very young archicarp. X 66.6. 
*Fig. 8. Older stage in section; the coil appears foreshortened, being seen from one end. The 
trichogyne is developing ; the nuclei are crowded, x 666. 
Fig. 9. Somewhat older archicarp ; trichogyne becoming emptied, x 666. 
Fig. 10. Section through a young fruit to show development of sheath and its relation to the 
hyplia bearing the archicarp. x 666. 
*Fig. 11. Coiled archicarp, showing stalk, coiled ascogonial region with numerous nuclei, and 
long, branched tricogyne. Pads have developed on most of the septa of the trichogyne, but through 
a septum near the ascogonial region a mass of granular substance is continuous from cell to cell/ 
x 666. 
PLATE XLIII. 
*Fig. 12. Part of an older fruit, showing an ascogonial cell with numerous nuclei and a long, 
empty trichogyne. x 666. 
Fig. 13. Two ascogonial cells in continuity. Nuclei passing from one to the other, x 1,000. 
*Fig. 14. Three ascogonial cells united by very large pores and almost empty. Above, asci are 
developing, x 666. 
Fig. 15. Group of ascogenous hyphae. x 2,000. 
Fig. 16. Prophase of first division in ascus, showing about eight chromosomes, x 2,000. 
Fig. 17. Metaphase of first division in ascus. x 2,000. 
* Figures marked thus have been drawn from two or more consecutive sections. 
