SCIENTIFIC COMMITTEE, JULY 2. 



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the Peziza ; hence it would be rather premature to give the supposed 

 Pcziza a name, before its existence has been demonstrated. Moreover, 

 Marshall Ward has not given a specific name to his Botrytis, although 

 he has described it with its cluster of egg-shaped conidia. Berkeley 

 described, in 1881, a species of white mould growing upon Lilies, which 

 he called Ovularia elliptica, from its elliptical conidia {Gardeners' 

 Chronicle, Sept. 10, 1881, fig. 66). This nevertheless is a species of 

 Botrytis, since called Botrytis elliptica, and probably is Marshall Ward's 

 species. Long previous to the above, Corda figured and described a white 

 mould, with ovate conidia, in glomerules, which was found growing on 

 immature fruits of Lilies in Bohemia ; afterwards cited in other parts 

 of Europe. This mould he called Polyactis cana, but during the recent 

 revision of all species of fungi, by Saccardo, it has been called Botrytis 

 canescens. Whether it is difterent from Botrytis elliptica I cannot say. 

 Another species of Botrytis has been found in Britain and Holland, 

 on leaves, stems, and flowers of cultivated Tulips. It is called Botrytis 

 parasitica (Cavara, App. Pat. Veg. 10, tab. vi., figs. 1 to 4). This is 

 probably difterent from the Botrytis on Lilies, although it is not im- 

 probable that it might develop upon Lilies if it came in contact with 

 them. Having in view the conference which is shortly to take place, it 

 may be interesting to allude to all the fungoid diseases of Lilies which 

 have come under my notice ; and, in this connection, it is satisfactory to 

 learn that the number of pests is below the average of plants so largely 

 cultivated. No other parasitic mould has been recorded, and, only 

 recently, one species of Mucor which attacks Lily bulbs raised in Japan 

 for exportation to Europe. This species is Bhizopus necans, described 

 by Massee {Keiv Bid let in, 1897, p. 87, with plate). It attacks the bulbs, 

 which soon become rotten, and exhibit clusters of tiny filaments vdth 

 black heads, like miniature pins. These heads enclose minute conidia, 

 while resting spores or zygospores are produced within the tissues of the 

 decayed bulbs, and thus perpetuate the s]3ecies after a period of rest. 

 The section of fungoid parasites which include the smuts, rusts, and 

 brands is represented, although there is no smut such as infests 

 Erythronium or Ornitliogalum. The cluster-cup of the Lily of the 

 Valley ^cidiiim Convallarice has occurred on Liliiun canadcnse, and 

 another cluster-cup (^ciclium) occurs on Martagon Lilies in Siberia. 

 Of the brands with simple teleutospores consisting of a single cell, the 

 most common is Uromyces Erythronii on Liliiun canadensc, in Europe ; 

 and another, less common, probably unknown in Europe, is Uromyces 

 Lilii, described as a pest of Lilies in the United States. To these must 

 be added the brands with two-celled teleutospores, but I am not 

 aware that Puccinia Liliacearum, notwithstanding its name, has been 

 found to attack Lilies, although it is known in Britain on Gagea and 

 Ornithogalum. Two other species, Puccinia TidipcE and Puccinia 

 fallaciosa, attack Tulips, so that, on the whole, the Lilies are favoured 

 by almost complete immunity from these forms of fungoid pests. 



The last group or section of parasites to which I need allude are the 

 leaf-spots caused by incomplete fungi, called the Sph<propside;e. Here, 

 again, the British cultivator may congratulate himself, since Pliyllosticta 

 liliicola, on the leaves of ilium caiididu)ii, has not extended beyond 



