Jennings — Two New Species of Phycopeltis^ New Zealand. 765 



11. Mae,shaxl Wakd. — Trans. Linn. Soc. Bot., 1884. 



12. Hansgieg. — Prod. Algen. flora Bohmene, ii., 1886. 



13. Hansgihg. — Flora. Neue Eeihe 47, 1889. 



14. MoBius. — Hedwigia, vol. 27, 1888. 



15. De Toni.— Sylloge Algarum, vol. i., 1889. 



16. Xaesten. — Ann. Jard. Bot. Buitenzorg, x., 1891. 



17. Haeiot. — Jonrn. de Botanique (Morot), iii., 1889. 



18. Ktjnze. — "Weigelt Surinam exsic. 



19. Montagne. — Mora de Cuba, p. 133. 



20. Feies.— Syst. Myc, in., p. 327. 



21. NxxANDEE. — Exp. Synopt. Pyrenocarpeorum, 1859. 



22. Beekeley. — Quart. Journ. Mic. Sc, 1875. 



23. Saccaebo. — Syll. Fung., i., p. 60. 



EXPLANATION OF PLATES. 



Plate XXVIII. 



1. Leaf of Nesodaphne, showing the yellow patches of PhycopelUs 



expansa passing into the lichen Strigula. 



2. A young fan-shaped disc of Ph. expansa, showing sporangia and 



the brown intercellular /mw^ms hyplia. 

 5. Cells of Ph. expansa, magnified 500, showing an empty disc- 

 sporangium. 



4. "Vertical section through the leaf, showing the superficial nature 



of the Phycopeltis. On the right, some of the hrown hypha 

 are shown, one of them bearing a sporidium. In the centre 

 is a ripe sporangium on the characteristic hooked pedicel ; to 

 the left is shown a pedicel after the fall of the sporangium ; 

 and on the right, a young sporangium. 



5. Cells of the disc, showing the intermediate hyphen. 



6. Part of the disc attacked by the lichen hyphen, showing the cell- 



contents separating and passing into the condition of green 

 gonidia. 



7. Section through leaf and a perithecium of the lichen Strigula 



complanata. 



