ON HETEROSrORTUM. 
123 
This genns approaches Cladospnrhim in habit, rather than ITel- 
minthosporium, and probably also in the spores being at first con- 
cacenate. All the species yet known are parasitic on living or 
fading leaves. 
Hetexosporium oxnithogali. Klotsch, 31 8S. 
Epiphyllnrn, effusnm. Floccis flexuosis, nodnlosis, robustis. 
Sporis 1- 5 septatis, cylindraceis, extus echinulacis. Helmintho- 
sporinm echinulatvm, C., in “ Grevillea,” iv., pi. 64, fig. 8. 
On leaves of Ornithogalum, near Shrewsbury (W. Phillips.) 
Spores -OS-'OS mm. long. 
Hetexospoxium echinulatum. B. Sf Br. 
Epiphyllum. Floccis flexuosis, sursum nodosis, fructiferis. 
Sporis oblongis, utrinque obtusis, triseptatis. HeJminthosporium 
echinulatum^ Berk., in ‘‘ Gard. Chron.” (1870), p. 382, fig. 63. 
Cooke, “ Handbook,” No. 1728. Helminthosporium exasperatum, 
B. & Br. Ann. N.H., No. 1380, t. 7, fig. 4. 
On sweet-william and carnation. Flocci knotted above, each 
knot bearing an oblong spore. Spores •03-05 mm. x •01-*0125 
mm. The same species would appear to have been described under 
two different names. 
Hetexospoxium vaxiabile. Coohe. 
Epiphyllum, in maculis sub-orbicularibus erumpens. Floccis 
elongatis, fasciculatis, flexuosis, nodosis, tenuibus. Sporis 1-3 
septatis, echinulatis. Helminthosporium variabile, C., “ Fungi 
Britt.,” ii.. No. 360. 
On leaves of Spinacia (Rev. J. E. Yize). 
Forming definite, somewhat orbicular, or irregular spots on 
fading leaves. Flocci more slender than in either of the foregoing, 
and altogether more delicate. Spores •02-‘05 x •007-‘01 mm. 
There appear to be good grounds for regarding these as en- 
titled to rank ’as distinct species, the similarity between them is 
that rather of generic than specific value. 
Although Helminthosporium arundinaceum is by no means a good 
species of Helminthosporium, it cannot be included in this genus. 
One or two North American species of Helminthosporium will pro- 
bably have to be transferred to this genus, as well as the following : — 
Hetexospoxium gxanulatum. B. <h C. 
Floccis Igevibus hie inde furcatis, vinosis. Sporis magnis, oblon- 
gis, triseptatis, granulatis. Helminthosporium granulatum, B. & C., 
in “ Cuban Fungi,” No. 631. 
On herbaceous stems. Cuba. 
Spores -045 mm. long. Strongly granulated. 
This species differs from the above in not occurring on fading 
leaves. 
The specimens published by Fuckel (No. 108) under the name 
of Helminthosporium pellucidum, Lk., belong to Macrosporium. 
The Helminthosporium fructigenum, of Rabenhorst’s Fungi Europaei, 
No. 468, appears to be a Cladosporium, 
