TAXONOMY AND CLASSIFICATION. 79 



). There is, however, a group of plants known » OeiltalteoM. 



JSatefto 'botVthe 1 Vascula^ Cr P ypLgaU and the Bryophyta 



still retaining some of the characters of the alual ^., ,. 

 i to or belonging to these Rhyniacese is a &*™J£^J^r 



, ., *u at the Pnmo-filices were witn- 



l sporangia, often 



;s— and we have already t 



niches. Therein 



- tVlT 



Gymnosperm. But the genera 

 knowledge of fossil 

 •al record is at present tar too 



; geological record is 





direct evidence 



between these i 



.■ ■ 



. ,: ,.: ■ •■■ '- " '• " . 



' e thread breaks, a better one car often 



i„» nnt. the thread " U 

 grc 



lot 



nnected logical 



S5S S^Sli 



! ' ,„„ of Ptetido- 



P» and Spermophyta based on lossn 



