428 Transactions. 
At this stage they are few in number and immature. They then divide 
until the number of the mature ball is arrived at, the gelatinous outer zone 
of hyphae gradually disappearing until at maturity practically no trace 
remains. 
| KEY TO SPECIES. 
Spore-balls of 2-6 spores мА zu Wigan fud. Neillii. 
Spore-balls of 15-50 spores .. e: .. 2. S. solidum. 
1. Sorosporium Neillii n. sp. (Text-fig. 22, and Plate 46, fig. 1.) 
Cyperaceae. 
Sori in occasional ovaries, frequently in all, at first enclosed within the 
perigynium, becoming exposed when black, compact, globose or elliptical, 
3-4 mm. long. a of i spores, irregularly je ce dark 
chestnut-brown, up to 50 mmm. long, readily breaking up at maturity. 
Spores irregular, angular, subgloboge or elliptical, frequently fatten 
on one side, 12-20 x 9-15 mmm. ; epispore coarsely and densely verrucose, 
chestnut-brown, 1- - mmm. thick. 
ost: Scirpus nodosus Rottb. In inflorescences. Herb. Nos. 1279, 1285. 
Bluff (Southland), seashore, W. D. Reid! 26 May, 1922. Seatoun (Wel- 
са. = J. "i Neill! G. H. C. 6 Dec., 1923. 
on : Australia 
The jeu is indigenous and abundant throughout; it occurs also in 
Australia, South Africa, and South America (Cheeseman, 1906, p. 776). 
—In water germination commenced in three days ; ; a short 
and slender probasidium is produced, and on this, both laterally and 
terminally, conidia are produced. In certain specimens the terminal 
conidium is formed before the probasidium becomes septate, but as a rule 
septation der the Voc mn of conidia. 
s species differs from S. piluliformis (Berk.) McAlp. on Scirpus 
prolifer Rottb., „ in that the spore-balls are less than half the size, = 
lighter in colour, and break up readily ; the spores are larger, and posse 
More verrucose, not tuberculate, epispores. 
[Latin diagnosis. ] 
Sorosporium Neillii. 
ad ovaria pauca destruentibus ; atris, compactis, globosis vel 
8 
Soris 
mpac 
— abies longis. Spororum pilis sporis 2-6; —À ellipticis, 
tanei 50 mmm. url 
poris insequalite angulatis, subglobosis vel ellipticis 12-20 = 
EC mel ; episporio crasse denseque verruculoso, castaneo, 1:5-2 mm 
Ве: In ovariis Scirpi nodosi Rottb. Bluff t renew: N.Z.), 
W. D. Reid! Seatoun (Wellington, N.Z), J. С. Neill 
