Sclerotinia spermophila Noble 1948
![Figs. 1-8. Sclerotninia spermophila. Fig. 1. Healthy seed of white clover (New Zealand). Fig. 2. Seed of white clover (New Zealand) infected by S. spermophila Fig. 3. The same, with developig sclerotia, after being kept damp. Fig. 4. Culture on malt agar developed from ascospores, showing the Botrytis heads and sclerotia. Fig. 5. Botrytis stage. (x 340 approx.) Fig. 6. Young apothecia on oat-agar culture. Fig. 7. Mature apothecia on oat-agar culture. © All rights reserved. [Image: KWX]](https://data.landcareresearch.co.nz/Image/KWX/SysPortalThumb)
![Figs. 1-8. Sclerotninia spermophila. Fig. 1. Healthy seed of white clover (New Zealand). Fig. 2. Seed of white clover (New Zealand) infected by S. spermophila Fig. 3. The same, with developig sclerotia, after being kept damp. Fig. 4. Culture on malt agar developed from ascospores, showing the Botrytis heads and sclerotia. Fig. 5. Botrytis stage. (x 340 approx.) Fig. 6. Young apothecia on oat-agar culture. Fig. 7. Mature apothecia on oat-agar culture. © All rights reserved. [Image: KWX]](https://data.landcareresearch.co.nz/Image/KWX/SysPortalPreview)
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Sclerotinia spermophila Noble 1948
Species affinis Sclerotiniae trifolii Erikss. atque S. minor Jagger a quibus conidiis formam eorum in genere Botryti simulantibus differt.
Sclerotia nigra, ambitu irregularia, saepe sphaerica, 0.5-1.5 mmdiametro. Apothecia solitaria vel nunc e sclerotiis simuli enata primum .poculiformia deinde plana. Discus 0.5-1.5 mm. diametro, cinnamomeobrunneus, stipite ad apicem similiter colorata sed basi nigrescente villosula 1-9 mm. longa, 0.5 mm. diametro. Asci cylindracei, 153-215 µ longi, 11-18 µ crassi (in medio 179 x 14 µ). apice parce incrassati, tincturam iodinam admittentes, ad medio sporis impleti. Ascosporae 8, plerumque uniseriatae, hyalinae ellipsoideae, 12-19 x 7-12(13) µ (in medio 15x19 µ). Paraphyses basi ramosae, apice paulo incrassatae, asco aequilongae. Macroconidiorum origo ad modum generis Botrytis, conidiophoris plerumque solitariis, conidiis in soros parvos sterigmatibus brevibus dispositis, hyalinis, ovalibus vel ellipsoideo-ovalibus, (7) 10-18 x 6-10 µ. Microconidia pusilla, globosa, circ. 3 µ diametro, hyalina guttula unica praedita, conidiophoris penicilloideis suffulta, extrinsecus orta.
Hab. In seminibus trifolii repentis praesertim ex Nova Zelandia importatis.
