52 
usually depressed and with a broader base; when mature, texture 
everywhere several cells thick, below more or less hyaline, but 
tinged in the lower layers with pale olivaceous or smoke colour, 
above Nae darker and brown or blackish towards the outside; 
provided with a decided ostiole or merely pierced by a pore, 
sometimes even ‘tnouthle ess, or opening by a slit or irregular ori- 
fice; internal cavity more or less divide at times by ebay ie 
of the proliferous layer. Spores mostly fusoid with subacut 
extremities, but occasionally tending towards ellipsoid with nar- 
rowed ends, or even oblong, usually biguttulate, hyaline; sporo- 
phores filiform, linear, subulate, or ampulliform, when long often 
curved, usually longer than the spores, densely crowded and more 
or less cM Sairescapaey 
u 
or hooked at the upper end like a Puy tap Many species 
the B-spores, see Nos. 28, 58, 67, 
The two most distinctive features of the nus Phomopsis are 
(1) the permanent sporophores, (2) the nature’ of the pycnidium, 
Which bears little resemblance to that of a typical Phoma, and in 
fact is so different that a practised eye can often distinguish them 
with a hand-lens or even without assistance. 
The chief accounts of the genus given since Saccardo are: 
Diedicke, Kryptogamenflora der Mark Brandenburg, Pilze, 
vol. ix, p. 238. 
Diedi cke, Annal. Mycol., 1911, ix. 8, ‘‘ Die Gattung Phomop- 
sis,’ with plates 1-3. 
Von Hohnel, Fragmente zur Mykologie, no. 87, pp. 32-3, 
May, 1906. 
Traverso, Flor. Ital. Cryptog. Part I, Fungi, vol. ii, fase. 1, 
October, 1906. 
1, Phomopsis Achilleae, v. Héhn. Fragm. zur Mykol. no. 87, 
. 32. Phoma Achilleae, Sace. in Mich. 11. 616, 
Spores oe * fusoid, 8-10 x 2-5-3 »; sporophores acicular 
subulate, 20-26 x 1-1" 5 (Fi 
On dead stems of Achilles Milie}otinm, Probably the pye- 
nidium of ey ae orthoceras, Nits. f£. Achilleae. Undoubtedly 
British, but the specimens from Kew Gardens, referred to this, 
are Diplodina M itlefolis, Allesch., having a true Phoma-like pye- 
nidium, obsolete sporophores, — not in the least degree 
fusoid and at length faintly 1-septate 
2. P. albicans, Syd. Mycoth. Germ. no. 1012. Phoma 
albicans, Rob. in Ann. Sci. Nat. 1849, xi. 284. 
Spores elliptic-fusoid, rather acute at ‘ig ends, 8-11 x 22:5 p; 
aes subuiate, frequently curved, up to 15-16 x 3 pB.- 
(Fig. 
