THE PHALLOIDE^ OF CEYLON. 165 



bamboo was placed with the mycehum -covered side down- 

 wards. The mycelium had grown round to the upper sur- 

 face on July 8, and fresh developing specimens of Clathrella 

 were observed on this new mycelium on July 10. One was 

 about a millimetre in diameter, and there was another group 

 of three about the same size. The first specimen was 2 * 5 mm. 

 diam. on July 13, 4 mm. on July 18, and expanded on 

 July 24. Of the group of three, only one grew : this 

 expanded on July 26. The period of formation of the egg 

 is therefore 15-17 days. 



Genus 6. Simblum, Klotzsch. 



Receptaculiim netted, with a long cylindric hollow stalk, 

 whose wall is composed of several layers of chambers : gleba 

 confined to the meshes of the net when ripe : arms of the net 

 one-chambered. 



Simblum periphragmoides , Klotzsch. 



In 1846 Berkeley described and figured a Simblum as 

 Simblum gracile, from a specimen and figure sent by Gardner 

 from Ceylon. His description is : " Stipite utrinque attenuato , 

 gracili, circ. 6 cm. alto, 1-1| cm. crasso, pallide luteo : parte 

 clathrata ovata (in Gardneri icone), infra a stipite discreta : 

 interstitiis parvis, rotundis : ramis luteis, subtenuibus. Ex 

 icone non certe elucet, utrum receptaculi pars superior pileo 

 ovato margine libero instructa sit , an, ut in Simblo, efformata 

 sit e stipitis apice dilatato, cancellato, Quamobrem, dubium est 

 an hsec species profecto g. Simblo sit inserenda." Fischer 

 includes it under S. periphragmoides, which differs only in 

 having the thickness of the stalk one half its length : Penzig 

 (Ann. Buitenzorg, Ser. 2, I., p. 157) prefers to call it S. peri- 

 phragmoides var. gracile, on account of the smaller relative 

 diameter of the stalk, but this is a variable feature and is 

 hardly sufficient to mark even a variety. Simblum sphmro- 

 cephalum, Schlect., apparently differs only in being red. 



The species was collected again by Thwaites in 1854, and 

 two of his specimens, with paintings of them, are in the Pera- 

 deniya herbarium. Several examples have been gathered 

 during the last two years, and in the number of occurrences 



