654 Transactions. 
Both hosts are endemic; R. flexuosus closely resembles R. Br 
owni 
Campd., the host of Puccinia Ludwigii Tepp. McAlpine -(1906, р. 173) 
mentions R. flexuosus as being a host of P. Ludwigii ; there has been some 
mistake in the determination of this host, as according to Cheeseman (1906, 
p. 591) R. flexuosus does not occur in Australia. 
This species is named in honour of the late Mr. T. Kirk, whose works 
on the flora of New Zealand are so well known to students of New Zealand 
botany. Mr. Kirk was also keenly interested in fungi, and despatched 
many specimens abroad. Through the kindness of Mr. T. W. Kirk, who 
gave me the fungous material collected by Mr. T. Kirk, including many 
cotype specimens, I have been enabled to verify many of my determinations 
of those fungi which have been named abroad. 
An occasional three-celled spore is to be seen in the teleutosori, the 
upper cell being divided by a vertical septum. This species is characterized 
by the thin non-apiculate epispore of the teleutospore. 
12. Puccinia tiritea n. sp. (Fig. 32.) 
0. Spermogones epiphyllous, in scattered more or less circular groups, 
seated on yellow spots, minute, immersed, honey-brown. 
II. Uredosori hypophyllous, scattered or arranged in irregular groups, 
cinnamon-brown, surrounded by the ruptured epidermis. Spores obovate, 
25-32 x 22-28 mmm. ; epispore coarsely and sparsely echinulate, 1-5-2 mmm. 
germ-pores on one face. 
+ !mmm.; germ-pore of upper cell immediately above the septum, 
conspicuous, basal pore immediately be | 
osts :— 
Muehlenbeckia australis (Forst. f.) Meissn. On leaves. Herb. No. 38 
II, ПІ. Tiritea, Palmerston North (Wellington), 300 m., G. H. C. 
3 Mor, 1921. (Type) II, Ш. Kingston (Otago), 400 m., W. D. 
Muehlenbeckia complexa. (A. Cunn.) Meissn. On leaves. Herb. 
Nos. 381, 396. П, III. Kingston; Table Bay ; 
ана (Otago), 300-700 m., W. D. Reid! April, May, 
Both hosts are endemic and widely distributed throughout New Zealand 
(Cheeseman, 1906, р. 592). This species may readily be distinguished by 
the coarsely warted epispore of the teleutospore. Another peculiar feature 
; Which are situated immediately above 
unusual position, and does not occur 
rrett (1910) records this peculiarity 
rust occurring on Angelica dilitata Holw., 
1 Ат “us rust is quite distinct from P. M kiag 
Syd., which in Australia occurs on Muehl kia adpressa Meissn., differing 
. LI ue L 
cair in the teleutospores being coarsely warted and not thickened at 
e apex. 
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