BRYOPHYTES. 



61 



Hypertrophy, etc. — A few curious cases of hyper- 

 trophy or development of extra structures in the 

 capsule must now be referred to. 



Monkemeyer describes in the moss Dicranella varia 

 two sets of mutually inverted peristome-teeth as 

 occurring between the main part of the capsule and 

 the operculum. In Bryum saxonum there were three 

 sets : two as in the previous case, and a third upper- 

 most one arising from the edge of the lid and pro- 

 jecting free into the peristome-cylinder below (fig. 

 17) ; in all three sets the peristome-teeth are much 

 shortened. 



Brizi observed, in the moss Homalothecium sericeum, 

 lateral hypertrophy of the apothecium, which was full 

 of starch and other granules. 



The final abnormality which is worth while mention- 

 ing is the occasional occurrence of cleistogamous 

 capsules observed by Monkemeyer in Bryum saxonum. 

 Gryorrfy also describes capsules of Splacltnum sphaeri- 

 cum which consisted of an apophysis only, no fertile 

 portion being present, this being attributable to injury. 



BIBLIOGRAPHY. 



Arnaoudoff. — "Quelques cas teratologiqu.es chez les mousses." 



Rev. Bryol., vol. xxxix (1912), pp. 51-52. 

 Balle. — "Sur mi cas teratologique presente par un Pogo- 



natum." Rev. Bryol., vol. xxxvi (1909), p. 100. 

 Bescherelle. — " Note sur une disposition an o male des pe- 



rigones dans le Webera annotina Schwaegr." Bull. Soc. 



hot. Fr., vol. xii (1865), pp. 137-140. 

 " Note sur deux cas de Syncarpie observes sur le 



Bryum atro-purpureum." Loc. cit., pp. 291-295. 

 Bliss. — "The Occurrence of two venters in the Archegonium 



of Polytrichum juniperinum." Bot. Gaz., vol. xxxvi 



(1903), pp. 141-142. 

 Bolleter. — "Fegatella conica (L.) Corda. Bine morphologisch- 



physiologische Monographic/' Beih. Bot. Centralbl., Bd. 



xviii, Aht. i (1905), pp. 327-408, pis. xii, xiii. 

 Brizi. — "Appunti di teratologica briologica." Ann. 1st. bot. 



Roma, vol. v (1893), p. 54. 



