

DISEASES OF TWO ORNAMENTAL PLANTS. 11 



was applicable to its primary conidia and the perfect stage had not 

 yet been observed. However, a complete translation clearly demon- 

 strated that there were more points of dissimilarity than resemblance 

 between the two fungi. Aciculosporium differs from the Chinese 

 species in general appearance, absence of secondary conidia, and in 

 the shape, size, and color of the ascospores. Doctor Mi}^ake con- 

 siders Aciculosporium nearly related to Epichloe and Dusiella, but 

 he states it possesses differences sufficient to establish a new genus. 

 The Chinese bamboo fungus is among the stromatic Hypocreacese, 

 most nearly related to Broomella and Peloronectria, but differs from 

 these genera in morphological details and olivaceous spores; hence, 

 the authors feel warranted in establishing a new genus to which the 

 name Loculistroma is given. The generic and specific descriptions 

 follow. 



TECHNICAL DESCRIPTION OF THE NEW GENUS LOCULISTROMA. 



Stroma upright, cylindrical, fleshy, soft, green or black, with conidial cham- 

 bers. Perithecia scattered, partly immersed, ostiolate. Asci clavate, cylin- 

 drical. 8 spored, without paraphyses. Sporidia fusiform, 3-pluriseptate, olivace- 

 ous, biseriate. 



TECHNICAL DESCRIPTION OF LOCULISTROMA BAMBUSAE. 



Stroma erect, soft, fleshy, generally sessile, averaging 1 centimeter in length 

 and 2 millimeters in diameter. Externally dark green or black. Perithecia 

 two-thirds immersed in stroma, almost spherical, 125 by 100 /x. Asci 8 spored, 

 clavate, cylindrical, 45 to 50 /j. by 9 to 10 ^ without paraphyses. Sporidia 

 olivaceous, fusiform, 3 to 5 septate, 22 by 4.5 to 5 n, biseriate. Primary conidia 

 in large chambers, hyaline, filiform, 14 to 1G fi by f to 1 n ; basidia 8 by * /x. 

 Secondary conidia dark olivaceous, Cladosporium-like, 1 to 3 celled, borne on 

 external olivaceous hyphse. 



Habitat. — Phyllostachys sp. 



DISEASES OF TWO ORNAMENTAL PLANTS CAUSED BY SPECIES 



OF BOTFvYTIS. 



Two species of Botrytis have been given considerable attention 

 recently, one causing a serious disease of peonies and the other of 

 chrysanthemums. 



DISEASE OF PEONIES CAUSED BY BOTRYTIS. 



The Botrytis on peonies was described by Oudemans a in 1897 as 

 Botrytis paeoniae. Massee & later referred to it as Sclerotinia paeon n/r. 

 which appears to be a hypothetical stage and name. For several 

 seasons diseased peonies have been received by the United States 

 Department of Agriculture from various localities, including Canada, 



a Oudemans, C. A. J. A. Sur une Maladie des Pivoines. Koninklijke 

 Akademie van Wetenschappen te Amsterdam. April, 1897. 

 b Massee, G. The Gardeners' Chronicle. August 13, 1898. 



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