lIiKMSCKA : StihiK-s f)N HIE Klax Ki m 7 



cylintliical or prisniatical, one-celled type, closely compacted into a single layer. 

 They are sessile on the short cubical cells at the base of the sorus, which lose 

 their contents with the development of the teleutospores. The membrane is ra- 

 ther thin, but slightly thickened at the apex, yellowish-brown to brown colour 

 and ordinary dark brownish colour at tlie upper i)art. The contents comprise 

 many oil granules. The length is 46.8 to 81.0 n and the breadth 8.0 to 19.2 n. 

 The basidiospore or sporidium is usually globose, lO.O to i lO /i by 9.0 to 1 i.o a, 

 smooth, witli very tliin epispore, containing many granules, pale yellow in 

 colour. 



3. Abnormal tclciitosporc. Peculiar shai^ed teleutospores are often observ- 

 ed in the old uredosori mixed among the paraphyses. These teleutospores arc 

 .solitary (not compacted laterally), one-celled or rarely septated, sometimes pedi- 

 cellate. Thi.s fact has been already observed in other species of Mdatnpsora 

 by Naohakh Hir.\tsuka'^ and P. Dietel'"'. In 1896, Naoharu Hiratsuka de- 

 scribed the peculiar shaped, one or two-celled, isolated teleutospores formed 

 among the uredosori in Melatnpsora Larici-epitea Kleu. on the leaves of 

 Salix vimiualis L. var. yezoensis Schneid., but he did not discuss the fact in 

 his graduation thesis. In 1901, Dietel reported on the teleutospore forms of 

 Melampsora paradoxa IJiej'. et Holw. {=Melampsora Bigelmvi ThCjm.). lie 

 maintained that Melampsora paradoxa has different forms of teleutospores be- 

 sides the t)'pical one of the genus Melampsora. And he said that, "Wir sehen 

 also an Alelauipsora paradoxa die Teleutosporen-charaktere zweier verschiedener 

 Gattung Melampsora und Uromyces vereinigt, dieselbe könnte also als ein Bind- 

 glied zwischen diesen beiden Gattung betrachtet werde." in the conclusion of 

 his paper. But, the writer does not agree, because those peculiar teleutospore- 

 forms have no important meaning despite Dietel's opinion, and it is only an 

 abnormal form of the teleutospores. The writer believes that these abnormal 

 teleutospores may be found in the species of Melampsora other than Melampsora 

 Larici-epitea, M. paradoxa and M. liniperda. 



i) On the Melampsorae of Japan, i''g6 (C'.ratiuation thesis). 

 2) Hedw. XI, p. (32)-(35) (1901). 



