- 63 — 



drawing resembles in my opinion too much the last one and not at all the 

 two former. 



Consequently it is evident that Teysmann's Karimata plant is nut 

 identic with L. carnosa Bl. 



Beccari, Burck and Christ suppose it to be perhaps identic with L. 

 deparioides Bk. {Davallia deporioides Ces., Felci e specie nei gruppi affini 

 raccolte a Borneo etc. 33 = Cyathea deparioides Ces., I.e. tab. IV). 



Should they be right in this, which only can be made out by comparing 

 Teysmann's plant with that of Beccari, on which Cesati based his diagnosis 

 and plate, then it is conspicuous that Teysmann's plant has nearly 

 exclusively retroflexed soriferous lobules while Cesati's plate shows only 

 non-retroflexed lobules or teeth. Burck also says „soriferous teeth often 

 turned back on the upperside of the frond" although in the mean time 

 he gives detail-drawings of a few non-retroflexed lobules (teeth) resembling 

 those of Cesati. 



Consequently it may be possible that Beccari, Burck and Christ are 

 right but Burck's information on page 34 I.e., the differences mentioned, 

 the different habitats (Karimata and Sarawak) and other characteristics 

 make it more probable that the species are no/ identic and that Teysmann's 

 plant is a species allied to L. Curtisii and that, so far as one might 

 judge from Cesati's drawing, Beccari's plant is a species allied to my 

 L. philippinensis. 



The specific name given by Burck can not be maintained because he 

 includes in his diagnosis and plate at least two different species or their 

 forms. 



After boiling a fertile pinna of a species whichever and keeping it for 

 at least one night in concentrated ammonia liquida or a saturated chloral-hydrate 

 solution, we get the surprising result that the soriferous lobules or teeth 

 are rising up little by little till they are more or less upright and placed 

 in a plane perpendicular to the plane of the blade or nearly so but commonly 

 more or less inclined either backwards (inwards in the direction of the 

 costa) or forwards (outwards in the opposite direction); the degree ot the 

 inclination may be due to different circumstances as age and habitat or so. 

 This erected or more or less inclining position, as I have seen also in a 

 living plant, is the original, natural one. 



Dryi)ig and pressing a plant for herbarium material it is evident tliat 

 the soriferous lobules or teeth are pressed down in the direction whither 

 they were at first inclining When the cavities of those lobules or teeth 

 are narrow or laterally compressed it is as evident that, if not always 

 then at least mostly, they must become twisted and as in the living state 

 the mouth of the cavities is directed obliquely towards the apex of the 

 segment, the mouth of the cavity, when pressed, will also be directed 



