Documents of the Assembly of the State of New York Volume 141, No. 14 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 Excerpt: ...on the stem of Allium sp.; also, that Botrytis cinerea is said to develop from the sclerotia. It is not similar to the onion Botrytis sclerotia since the latter are in most cases inseparable from the host tissue. 5.--S. inconspicuum Lib.2 which is reported to occur on putrid onion bulbs has very small, brown sclerotia not at all like the sclerotia in question. 6.--S. pulveraceum Dur et Mont.3 has round-globose, small (0.2-0.5 mm.) sclerotia which have been found in the bulbs of Allium pollens. These cannot compare with the sclerotia found in the onion bulbs attacked by the neck-rot fungus because of their small size. 7.--S. tulipae Lib. var. Hyacinthi Guep.4 which is reported as occurring on the stems of Allium vineale has thin, ovate-oblong, minute sclerotia from which Botrytis parasitica Cav. is said to have been produced. Their occurrence on the stem, and their small size and thinness distinguish them from the sclerotia of the onion Botrytis. Six species of Botrytis have been reported as occurring upon some parts of plants of Allium sp. These, also, will be critically compared with the onion Botrytis studied. 1.--B. aclada Fres.5 is reported as occurring on the dying scapes of Allium. However, it does not correspond to the onion Botrytis because it has ovoid-oblong conidia which are said to be one-half the size of those of B. acinorum Pers.; that is, 5-7 x 3.5-4.5 microns. 2.--B. carta Kze. et Schm.6 is reported to have large oval spores. According to Ward (1888, p. 360) Botrytis (Polyactis) carta Berk. (B. carta Schmidt) has conidia measuring 30-33 x 15-8 microns. The conidia of neither of these species compares at all with the long elliptical conidia of the onion Botrytis. Saccardo, Syll. Fung. 14:1165; Lindau, Rab. Krypt. Fl. 19:674. 2Saccardo, Syll. ...