26 — Transactions 
echinulate, spines sparsely distributed towards base of spore, 1:5 mmm. 
thick, cell-contents granular, orange ; germ-pores indistinct. 
III. Unknown. 
Host: Fuchsia excorticata (Forst. f.) L.f. On leaves. Herb. Nos. 190, 620. 
II. Hawyard's, Upper Hutt (Wellington), T. Kirk! 3 Sept., 1881. (Type 
collection.) Weraroa (Wellington), G. H.C. 6 Oct., 1919. (On seedlings.) 
York Bay (Wellington P. Е. Н. Atkinson! 24 Oct. 1920. Р rsto 
North (Welington), R. Waters! 27 Jan., SE Seashore, Seatoun 
о е ЫТ tkinson! = G. Н. С. arch, 1922 EA 
(Otago), R. T rey 27 May, 1921. Gleudelands Hamilton, G. H. C. 
24 May, 1 
The host is endemic, and is abundant throughout. (Cheeseman, 1906, 
p. 186. 
This rust is common in certain parts of New Zealand, and is con- 
spicuous owing to the bright orange colour of the uredosori ; in certain 
specimens. the entire leaf-surface may be covered with the so 
The uredo stage quee is known ; the uredospores do not bes resemble 
other species of the genus, differing p in being echinulate and 
not covered with deus tubercules 
I. MELAMPSORACEAE. 
Teleutosori waxy.  Teleutospores sessile, compacted laterally in 
flat crust, seldom solitary within the host-tissues, unicellular, or divided 
longitudinally into 2-4 cells. Basidium external. Uredosori with or without 
peridia; uredospores borne singly on pedicels. Aecidia with or without 
ridia. 
d n germination à basidium is produced from the apex of the spore; 
this becomes four-celled by transverse septa, and from each сат there 
arises a sterigma, bearing the basidiospore on its apex. This method of 
germination, together with the waxy compacted teleutosori, асап 
the family. 
Nine genera are by Grove (1913, p. 336) included in the family. 
Arthur (1907) places it, together with the Cronartiaceae, in one family 
which he has termed the Uredinaceae, including in all eighteen genera. 
Dietel (1900) includes both the Cronartiaceae and Coleosporiaceae under 
the Melampsoraceae, inclu in all fourteen genera. 
The following four genera occur in New Zealand :— 
КЕҮ TO THE GENERA OF MELAMPSORACEAE. 
Uredosori enclosed in HEN ко һу ап Sy owe pore: 
Sori on Filicales .. 4. Milesina. 
Sori on нор 
Teleu pere unicellular, united into lateral flat waxy 
Зе . М совре 
е 2-4 celled by vertical septa x3 & Puce 
Uredosori naked, or surrounded only by paraphyses . ee M 
1. MELAMPSORA Castagne. 
Cast., Obs. Myc., vol. 2, ^ 18, 1843. 
Physonema Lev., Ann. Sci. Nat., ser. 3, oe 8, p. 374, 1847.  Podosporium Lev., 
pe Podocystis Fr., Summa Veg. Scand., vol. 2, p. 512, 1849. Саеота Tul., 
nn. Sci. Not, ser. 4, vol. 2, p. 172, 1854. Ur edo Pers., ex Arth., N. Am. Fl., 
ai 1, P. 97, 7, 1907. Buba kia Arth., Res. Sci. Congr. Bot. Vienne, p. 338, 1906. 
i5 Autoecious and heteroecious. Cycle of d dein includes 0, I, П, 
