282 PATHOLOGY [BoT. Absts., Vol. X, 



which are characteristic of the Wealden flora (Lower Cretaceous) of Europe. An especially 

 large number of Coniferales and ferns are reported. — C. H. Farr. 



184S. Chandler, M. E. J. Note on the occurrence of Sequoia in the Headon beds of 

 Hordwell, Hants. Ann. Botany 35: 457. 1921. — Well preserved material consisting of twigs, 

 leaves, cones, and seeds of Arthrotaxis Couttsiae Starkie Gardner, were found in Gardner's 

 original locality at Hordwell, Hants. They proved on careful examination to be Sequoia, 

 as most paleobotanists except Starkie Gardner have always considered them. — W. P. 

 Thompson. 



1849 Church, A. H. The lichen life cycle. Jour. Botany 59: 139-145, 164-170, 197-202, 

 216-221.. 1921. — Through a detailed comparison with Laboulbeniaceae and Florideae, the 

 author comes to the conclusion that the lichen fungi represent relics of a distinct race, derived 

 from marine ancestors, "but presenting while still in the sea a somatic organization of high 

 grade, fully complementary to the advanced conditions of their reproductive mechanism and 

 life-cycle. ... In pool formations of standing water, these heterotrophic survivors have 

 picked up intrusive algae, to recover vicariously photosynthetic relations with the free atmos- 

 phere." Through the periodic or permanent drying up of these pools, the xerophytic con- 

 dition we now know was attained. — Adele Lewis Grant. 



1850. Menzel, p. tJber hessische fossile Pflanzenreste.[ On fossil plants from Hesse.] 

 Jahrb. Preuss. Geol. Landes. 4H: 340-391. PL 14-18. 1921.— Small Tertiary florules from 

 eight different localities in Hesse are described. The following forms are new: C yclobalanop- 

 sis gracilis, Styrax blanckenhornii, Laurophyllum apolloniaceum, Viburnum schultzii, Legumi- 

 nosites vicioides, Phyllites knemaeformis, Carpolithes circumcinctus . — E. W. Berry. 



1851. PoTONiE, R. Der mikrochemische nachweis fossiler kutinisierter und verholzter 

 Zellwande sowie fossiler Zellulose und seine Bedeutung fiir die Geologic der Kohle. [Micro- 

 chemical test for cutinization and lignification of the cell wall, also fossil cellulose and their 

 bearing on the geology of coal.] Jahrb. Preuss. Geol. Landes. 41^: 132-188. Fig. 2. 1920. 



PATHOLOGY 



G. H. Coons, Editor 

 C. W. Bennett, Assistant Editor 



(See also in this issue Entries 1448, 1456, 1462, 1469, 1508, 1509, 1520, 1523, 1642, 1687, 1696, 

 1704, 1752, 1771, 1801, 1964, 1966, 1971, 1973, 1974) 



PLANT DISEASE SURVEY: REPORTS OF DISEASE OCCURRENCE AND SEVERITY 



1852. Anonymous. The "Fiji disease" of sugar-cane. Jour. Dept. Agric. Union of 

 South Africa 2: 554-55G. 1921. — This is a general account of the occurrence of this disease 

 in Fiji, New Guinea, and Hawaii, and of the symptoms a,Tid cause so far as they are at present 

 known. — E. M. Doidge. 



1853. BiJL, Paul A. van der. A paw-paw leaf spot caused by a Phyllosticta sp. South 

 African Jour. Sci. 17: 288-290. 1921. — A leaf spot, or shot hole, disease of pawpaws is here 

 described which is said to be caused by Phyllosticta caricae-papayae. — E. M. Doidge. 



1854. Brunbr, S. C. Informe sobre enfermedades del cafeto. [Coffee diseases.] In- 

 forme An. Estac. Exp. Agron. [Cuba] 1918-20: 628-632. 2 fig. 1920.— Three coffee diseases 

 have been found in Cuba, thread blight {Pellicularia kolerdga), and 2 leaf spots, due respec- 

 tively to Stilbella flavida and Cercospora coffeicola. The symptoms of these diseases are 

 given and control measures outlined. — John A. Stevenson. 



