Gadgil, P.D.; Dick, M.A. 1983: Fungi eucalyptorum novazelandiae: Septoria pulcherrima sp. nov. and Trimmatostroma bifarium sp. nov. New Zealand Journal of Botany 21(1): 49-52.
![Fig. 1. T.S. of a leaf of Eucalyptus nitens with a pycnidium of Septoria pulcherrima. (x 380). Fig. 2. Conidia of S. pulcherrima from a pycnidium on a leaf of E. nitens. (x 240). © Landcare Research. [Image: AKM]](https://data.landcareresearch.co.nz/Image/AKM/SysPortalThumb)
![Fig. 3. T.S. of a leaf of Eucalyptus regnans with mycelium and conidia of Trimmatostroma bifarium. (x 440). Fig. 4. Chain of conidia of T. bifarium from a leaf of E. regnans. (x 620). Fig. 5. Conidia of T. bifarium from a leaf of E. regnans. (x 380). Fig. 6. Conidia of T. excentricum from a leaf of E. delegatensis. (x 380). © Landcare Research. [Image: AKN]](https://data.landcareresearch.co.nz/Image/AKN/SysPortalThumb)
![Fig. 1. T.S. of a leaf of Eucalyptus nitens with a pycnidium of Septoria pulcherrima. (x 380). Fig. 2. Conidia of S. pulcherrima from a pycnidium on a leaf of E. nitens. (x 240). © Landcare Research. [Image: AKM]](https://data.landcareresearch.co.nz/Image/AKM/SysPortalPreview)
![Fig. 3. T.S. of a leaf of Eucalyptus regnans with mycelium and conidia of Trimmatostroma bifarium. (x 440). Fig. 4. Chain of conidia of T. bifarium from a leaf of E. regnans. (x 620). Fig. 5. Conidia of T. bifarium from a leaf of E. regnans. (x 380). Fig. 6. Conidia of T. excentricum from a leaf of E. delegatensis. (x 380). © Landcare Research. [Image: AKN]](https://data.landcareresearch.co.nz/Image/AKN/SysPortalPreview)
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Gadgil, P.D.; Dick, M.A. 1983: Fungi eucalyptorum novazelandiae: Septoria pulcherrima sp. nov. and Trimmatostroma bifarium sp. nov. New Zealand Journal of Botany 21(1): 49-52.
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Descriptions
HABITAT: in foliis vivis Eucalypti nitentis prope Kinleith, Novazelandia; coll. R.M.J. MacKenzie, Feb 1981, NZFR 14 holotypus; PDD 42838 isotypus. In foliis vivis E. cephalocarpae (M. MacKenzie, Rotorua, Feb 1982, NZFRI 101, PDD 42839), E. cypellocarpae (Zandvoort, Rotoehu, Mar 1982, NZFRI 102, PDD 42840), E. dalrympleanae (Zandvoort, Rotoehu, Mar 1982, NZFRI 103, PDD 42841), E. gunni (Zandvoort, Rotoehu, Mar 1982, NZFRI 105, PDD 42842), E. globuli (R.M.J. MacKenzie, Pureora, Jun 1982, NZFRI 104, PDD 42843), E. ovatae (R.M.J. MacKenzie, Kinleith, May 1981, NZFRI 106, PDD 42844), paratypi.
Leaf spots amphigenous, irregularly rounded, usually confluent, at first yellowish, becoming a bright carmine, and finally brown. Pycnidia numerous, discrete or aggregated, amphigenous, subepidermal, globose to subglobose, 65-120 x 60-95 µm, pycnidial walls 7-12 µm thick, cells at surface of textura angularis, brown. Conidiogenous cells arising from cells of the wall, doliform or ampuliform, hyaline to pale brown, simple, up to 5 µm long. Conidia hyaline to pale brown, smooth, elongated cylindrical, base truncate, tapering slightly to an obtuse apex, (0-)1(-2)-septate, not constricted at the septa, flexuous, 30-60 x 3-4 µm.
Maculis amphigenis, irregulariter rotundatis, plerumque confluentibus, primo luteolis, deinde puniceis postremo brunneis. Pycnidiis sparsis vel gregariis, amphigenis, numerosis, subepidermicis, globosis vel subglobosis, 65-120 µm longis x 60-95 µm latis, parietibus brunneis ex textura angulari compositis. Cellulis conidiogenis doliiformibus vel ampulliformibus, simplicibus, hyalinis vel pallide brunneis, usque ad 5 µm longis. Conidiis hyalinis vel pallide brunneis, levibus, cylindraceis vel ad apicem attenuato-obtusis ad basim truncatis, flexuosis, 0-2 septatis frequenter 1-septatis, ad septa non constrictis, 30-60 x 3-4 µm.
The specific epithet refers to the very handsome appearance of the leaf spots.
Two other species of Septoria, S. ceuthosporoides (Cooke) Sacc. and S. mortolensis Penz. et Sacc., have been described from Eucalyptus leaves. The major characters of these [S. ceuthosporoides, S. mortolensis, S. pulcherrima] and of S. pulcherrima are given in Table 1 for the purpose of comparison [not provided here].
HABITAT: in foliis vivis Eucalypti regnantis prope Kinleith, Novazelandia; coll. D.J. Rawcliffe, Sep 1981, NZFRI 5 holotypus; PDD 42845 isotypus. In foliis vivis E. delegatensis (Zandvoort, Rotoehu, Oct 1981, NZFRI 107, PDD 42846), E. fastigatae (Rawcliffe, Kinleith, May 1981, NZFRI 108, PDD 42847), E. sieberi (Zandvoort, Rotoehu, Feb 1981, NZFRI 109, PDD 42848), paratypi.
Leaf spots amphigenous, roughly circular, 2-18 mm diam., mostly discrete but occasionally confluent, with concentric brown or brownish zones. Mycelium superficial, repent; hyphae brown 3-4 µm wide, septate. Sporodochia amphigenous, brown to black, pulvinate, often arranged in circular groups, up to 350 µm in diam. Conidiophores micronematous, short, aggregated, brown. Conidia formed in basipetal chains, fragmenting, brown, consisting of 2 parallel and discrete to laterally fused rows of cells with a common thickened, transverse base and obtuse apices, 12-24 x 6-14 µm, 6-10-celled when mature (with 3-5 cells in each row).
Maculis amphigenis, subrotundatis, 2-18 mm diam., sparsis raro confluentibus, in zonis concentricis brunneis vel brunneolis divisis. Mycelio superficiali, repenti; hyphis brunneis, 3-4 µm crassis, septatis. Sporodochiis amphigenis, brunneis vel atris, pulvinatis, in catervis circularibus (usque ad 350 µm diam.) dispositis. Conidiophoris brevibus, confertis, brunneis. Conidiis catenulatis, basipetis, fragmentis, brunneis, cellulis duobus parallele seriebus ordinatis, ad apices obtusis, basibus communibus incrassatis, 12-24 x 6-14 µm, 6-10 cellularis ubi maturis, (3-5 in quoque serie).
The specific epithet refers to the arrangement of the conidial cells in 2 rows.
Trimmatostroma excentricum Sutton et Ganapathi, described from Eucalyptus delegatensis (Sutton & Ganapathi 1978), has 4-celled conidia with 2 primary basal cells and 2 secondary cells (Fig. 6) whereas the conidia of T. bifarium are 6-10-celled with the cells arranged in 2, equal or unequal, parallel rows (Fig. 5).
Cited scientific names
- Eucalyptus cephalocarpa Blakely
- Eucalyptus cypellocarpa L.A.S.Johnson
- Eucalyptus dalrympleana Maiden
- Eucalyptus delegatensis R.T.Baker
- Eucalyptus fastigata H.Deane & Maiden
- Eucalyptus globulus Labill. subsp. globulus
- Eucalyptus gunnii Hook.f.
- Eucalyptus nitens (H.Deane & Maiden) Maiden
- Eucalyptus ovata Labill.
- Eucalyptus regnans F.Muell.
- Eucalyptus sieberi L.A.S.Johnson
- Phaeophleospora eucalypti (Cooke & Massee) Crous, F.A. Ferreira & B. Sutton 1997
- Septoria pulcherrima Gadgil & M.A. Dick 1983
- Trimmatostroma bifarium Gadgil & M.A. Dick 1983
Metadata
1cb0df74-36b9-11d5-9548-00d0592d548c
reference
Names_Fungi
8 September 2004
