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112 THE BRITISH SMUT FUNGI<br />

protruding sterile hyphae intermixed with the sporogenous hyphae. Sporidia<br />

globose to elliptical. Sporidial germination by a filamentous mycelium or by the<br />

formation of fusiform secondary spores.<br />

Graphiola phoenicis Poit. , Palm Smut<br />

Oraphiola phoenicis Poiteau, Ann. Sci. nat. iii, 473, 1824 [G. phoenicis (Moug.)<br />

de Toni [as '(Moug.) Poit.'] {PRacidium phoenicis Mougeot, 1821) is a later<br />

homonym].<br />

Sari in the leaves, erumpent, rounded, 1-1-5 mm. wide, 0-5 mm. high, each with<br />

a hard black outer wall surrounding a thin colourless membrane, at first closed,<br />

then with an apical opening through which fascicles of yellowish hyphae protrude<br />

2 mm. or more. Sporidial mass yqUowish, granular. Sporidia globose to<br />

elliptical, colourless, smooth, 3-6 /x diam.<br />

On date-palm (Phoenix dactylifera) in greenhouses.<br />

Eccsiccati: Vize, Fungi Brit., 171; Fungi exsicc. Select, ex Herb. M. C. Cooke, on<br />

palms, Kew Gardens, April, 1855.<br />

DOUBTFUL AND EXCLUDED SPECIES<br />

Doassansia comari (Berk. & White) de Toni & Massee {Protomyces comari Berk.<br />

& White) = Physoderma comari (Berk. & White) Lagerh. See Sampson<br />

(1940).<br />

Melanotaenimn ari (Cooke) Lagerh. [Protomyces ari Cooke (Grevillea, i, p. 7,<br />

1872) on leaves of Arum maculatum, Chichester) has frequently been accepted<br />

as a smut but an examination of the type specimen and other European<br />

material in Herb. Kew. supports the opinion expressed by Beer (1920) that<br />

this species does not belong to the UstUaginales. The thick-walled spores are<br />

possibly oospores.<br />

Sorosporiom scabies (Berk.) Fisch. v. Waldh. (Tuburcinia scabies Berk.) =<br />

Spongospora subterranea (Wallr.) Lagerh.<br />

Sphacelotheca reiliana (Kiihn) Clinton on maize was compiled by Cooke (1906)<br />

but no British record has been traced.<br />

Tilletia berkeleyi Massee (1899) on Triticum vulgare, King's Cliffe, Northants.<br />

(Rev. M. J. Berkeley). The type specimen, which has no spores, gives no clue<br />

to this very doubtful species.<br />

Tilletia sphagni Nawaschin in capsules oi Sphagnum papillosum Lindb., Blelham<br />

Tarn, nr. Ambleside, Westmorland, 24 March 1948 (D. Walker, 1948), is of<br />

doubtful affinity.<br />

Tolyposporium montiae (Rostr.) Rostr. (Sorosporium montiae Rostr.) which was<br />

recorded on Montia fontana. West Kilbride, Ayrshire (D. A. Boyd) by Wakefield<br />

& Dennis {Trans. Brit, mycol. Soc, xxix, p. 145, 1946) is of doubtful<br />

affinity and does not, it is felt, justify the introduction of either Tolyposporium<br />

or Sorosporium into the British list.<br />

IlstilagO caidui Fisch. v. Wald. on Carduus was recorded by Cooke (1878) and<br />

Plowright (1889). No British specimen has been traced but there is a record<br />

on Girsium paltistre (F. A. Mason, Naturalist, 1921, p. 349).<br />

Ustilago cucumis A. B. Grifiiths, zooglea threads in root nodules of Cucumis<br />

sativa.

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