6 ^ )¥— isi M a^ rri n m '^ 



is mailc up of two or three elongated cells. Tiie shape of the spore is globose, 

 ovate or ellii)soi(J, measuring 12.6 to 23.4 // in length and 126 to 21.6 // in 

 width. Its contents are granular and yellowish orange in colour. The walls 

 arc rather thin (1.6 to 2.0 // thick), finely cchinulate and colourless. 



3. Paraplivscs. The p,ira[)hyscs arc strongly capitate or clavate with long, 

 slender stalk. The Iiead is usually .somewhat larger than the uredospore. The 

 walls arc thicker than those of the uredo.spores and mostly without echinulation. 

 The stalks arc undivided and contain but little c\toplasm. The size of the 

 para[)l)\ses is 40. o to 66.5 /( long and 14.5 to 23.0 /< broad. 



4. Pseiidoperidiiini. At first, the uredosorus of this fungus is covered by 

 a delicate parenchjniatous peridium or pscudo[)eridium, but, later, it is absorbed 

 or when present, it is found surrounding the uredosorus. Each cell of the 

 l)arcnchymatous peridium is globose or .sometimes slightly polygonal in shape, 

 aiul 6.S to 9.2 /'- in diameter. These facts were first reported by I'-D. Fi.scher'^ 

 in 1904. He stated that "anfanglicli von polyedrisch-zelliger Peridie bedeckt". 

 Several years later, J. I. LiKcr'' also described these facts in his "Uredineae 

 I'cnnicac". 



D. Teleuto stage. 



I. TcUiitosorns. The teleutosori generali)- a[)pear around the uredosori 

 and are formed on both sides of the leaves, bracts and seed capsules and more 

 frei.[uently on the stems. They are round (about 0.5 to 1.5 mm. in diameter) 

 antl isolated on the leaves, but on the stems are more often stretched and ir- 

 regularly elongated in long streaks (up to 2.5 cm. in length). In colour they 

 are reddish brown when young, becoming blackish-brown to brownish-black 

 V, hen the spores are in maturity. When the ,\oung host plants of 6 to i5 cm. 

 ill height are attacked b\' the fungus and when the teleutosori appear on the 

 stems as the result, the m\-celium develops rapidly in the soft host tissue and 

 kills the [ilant upward, from the lesion. The teleutosori are formed uuder the 

 epidermis and are long covered by it. 



2. Teltutospore and basidiosporc . The teleutospores are of the elongated, 



i) Die Uredineen der Schweiz, p. 307 (^1904). 



2) Uredineae Kcnnicae, \\ 55" ( ivIoS). ... 



