VII. 



Figure 35, 

 ♦(ii 108 J 



Figure 36. 

 (p. 109) 



Figure 37. 

 (p. 112) 



Figure 38. 

 (p» 113) 



Figure 39. 

 (p. 114) 



Figure 40. 

 ^p. 114) 



Figure 41. 

 fp. 118) 



Figure 48. 

 ( p. 118) 



Figure 43. 

 (p. 119) 



Figure 44. 

 (p. 131) 



Figure 45. 



(p. lai) 



Figure 46. 

 (p. 122) 



Figure 47, 

 (p. 124) 



a I>3:aJ>a aizoides . cross-section of a leaf. 

 Ttie epidermal cells are infected by Syn- 

 chtrium Drabae (After LTidi)^-, b, Myosotis 

 epidermal cells grown out like hairs ^ in- 

 fected by SynohtriTjm Jilvosoti dis. (After 

 Schrbter) . 



a, 



Synchytrium Anem ones . all epidermal cells, 

 lying hex:; the nutritive cell, have be- 

 come enlarged, b, S ynchytrium Drabae , 

 By division, a wart has been produced, 

 on the apex of which lies the large nu- 



, tritive cell, (After Liidi) 



Stipa ijennata . a, Piece of a blade infected 

 by Tarsonemus,. b, some epidermal cells 

 more highly magnified. (After Massalongo) . 



fillia. Cross-eection through a leaf of the 

 linden, bearing Erineum. Ihe epidermal 

 cells, on both sides, have grown out in- 

 to long cylindrical poTiches. (Original) 



Acer. Croes-section through a leaf with 

 Erineum on the under side. (Original) 



Alnus latifolia . 

 i Original) . 



Some hairs of its Brineum. 



figcas. The zone of a cycas root inhabited 

 "by algae. Ihe intercellular spaces be- 

 tween the hypertrophied cells are inhab- 

 ited by Anabaena threads. (After Life, 

 "Tuberlike rootlets of Cycas reooenta ) . 



Acer . Part of a cross-section through the 

 so-called window-gall of the maple. 

 (Original) . 



Viburnum Lantana . Part of^a cross-section 

 through the vesule-gall. (Original) . 



Acer campestri s. a, Brineum hair. (Original) 

 b, deforme'd root hair. (After Schwarz) . 



Phyteuma . a, pathological hair- formations of 

 Eairs on an inflorescence gall. I Original) 

 b and c. deformed root hairs. (After 

 Schwarz) . 



^inapis . Root hairs of, seedlings a€ter treat- 

 ment with dilute sublimate solution. 

 (Original) . 



Rozites gonglyophora . "Kohl-rabi mound" from 

 the fungus gardens of ^he lower Brazilian 

 Atta-specles, (After Moller) . 



1. Beitr^ z. Kenntn. d. Chytridiaceen. Hedwigia, 1901, 

 Bd. XL, p. 1, 



