Fungus Diseases of Citrus Trees in Australia, and Their Treatment

Fungus Diseases of Citrus Trees in Australia, and Their Treatment PDF

Author: Daniel Mcalpine

Publisher: Theclassics.Us

Published: 2013-09

Total Pages: 40

ISBN-13: 9781230464497

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1899 edition. Excerpt: ... II. Fungi On Leaves--continued. 33. Sporodesmium triseptatum. 34. Coniothecium citri. 35. Macrosporium citri. 36. Macrosporium disruptum. 37. Fusarium roseum. 38. Epicoccum granulatum. 39. Phyllosticta hesperidearum. 40. Phjllosticta longispora. 41. Phyllosticta scabiosa. 42. Phoma flaccida. 43. Phoma hesperidum. 44. Phoma rhodospora. 45. Dothiorella federata. 46. Pyrenochaeta destructiva. 47. Coniothyrium citricolum. 48. Coniothyrium cervinum. 49. Diplodia destruens. 50. Ascochyta citricola. 51. Hendersonia citri. 52. Hendersonia socia. 53. Septoria flaccescens. 54. Septoria westraliensis. 55. Gloeosporium citricolum. 56. Glososporium tenuisporum. 57. Colletotrichum gloeosporioides. 58. Pestalozzia funerea. 22. CITRUS SPHRELLA. (Sphcerella citricola, n. sp.) Perithecia loosely gregarious, minute, black to fuliginous, immersed, membranaceous, sub-globose, shortly papillate with round pore, about lOOju. diam. and pore 18-20ju. diam. Asci elongated-clavate to fusoid, shortly stalked, 37--41 X 11-13/i. Sporidia 8, sub-hyaline, narrowly oblong, rounded at both ends, distichous, very slightly constricted at septum, with finely granular contents, 13-15 X 3-4. On both surfaces of withered tip of Lemon leaf. April, 1898. Corroy, Queensland. (Tryon.) It differs from S. gibelliana (Pass.) in the asci being twice as broad and the sporidia much longer. In the immature stage, the sporidia are continuous and oval, and towards maturity they become elongated and uniseptate. It was found associated with Colletotrichum glceosporioides (Penz.). (Figs. 48, 49.) 23. POINTED SPHERELLA. (Sphcerella sicula, Penz.) Very minute, densely gregarious, punctiform pustules, standing out like the pile in velvet, on both surfaces of leaf but mostly on underside, on...