L>94 PETCH : 



that it seems Viottcr to db^tinguish the second as a variet)'. 

 Accordingly .she has named the oval-spored form. var. 

 ovalisporum . 



The Stilbuin stage of HypomyccK stilbiger. parasitic on 

 Trichia. is verv common in the up-countrv districts of Cevlon. 

 It occurs on Trichia varia, Trichia ajjinis, H emitrichia serpula, 

 &c.. but is especially abundant on Trichia hotrytis. Whole 

 sheets of the latter may be found, every head bearing up to 

 half a dozen specimens of the Stilhum. The perithecial stage 

 is rarer, but 1 have found it on Trichia botrytiii and T. afjini)^. 

 IJerkeley and Broome's specimen in the Peradeniya Herbarium 

 is on 11 emitrichia serpula. The Stilhum stage luus been found at 

 Peradeniya on Perichoena dcpressa. 



The Stilbum, is white, erect, up to 0-75 mm. high. The 

 stalk is 30-40 j;. diameter, beset with rounded processes : it 

 expands above into a globose head. 120-160 (jl diameter, 

 which , when the spores are all removed, exhibits a globo.se core 

 70-(K) ji diameter. The stalk is composed of parallel hypha. 

 and either ari.'^es direct from the sporangium of the Trichia t)r 

 is furnished with a slight white stroma at the base. The 

 coniflia are minute, oval, and hyaline, and measure 1-5-2 v 

 •7r) jjL. Another,measurement gave 1-5-3 X 75-1 '^. 



The iMTithc-fiaare scattered, superficial, fi ask -.shaped, about 

 0-.'{ mm. high and 0-2 mm. diameter below, amber coloured, 

 translue^mt, clothed below with whit<' hypha^ which bind it to 

 the substratum, but glabrous above. The |>crithecinl wall is 

 thin and subtransparent. The asci are oylindric, tapering 

 below. ISO 2(M» ;j. loiiu and 5-7 [j. diameter; the a|M>x is 

 roundcHl and (hickened, with a central pore. There are no 

 paraphyses. The sjiores are at lirst eight in numlx.'r, and 

 about \(V\ 'y long: they divide within the a,<ic.u,s into cuboid 

 ■fXirt-MjM/reji which round n/f and become .spherical, yre.eni.th 

 hyalim , I I ■.'» \y. diameter. 



Brf)ome'H nieasuremenl. of the conidia. according to the 

 inscription on his siH-cimen in the British Museum, was 5 jjl. 

 But the measurement published by Berkeley and Broome in 

 the " Fungi of ("<'yl()n" was 7-5-10 {j., and i( is usually 

 supf>c)sc<l that Broome was responsible for the microscopic 

 measurenierils [lublished by the joint authoi^s. Examination 



