82 BOTANY OF BIHAR AND OBISSA. 



The Gnetalesno doubt had an origin very far down the Gymno- 

 BP S There"are other Angiospermous characters m ( i ■■ . 

 the reduction,,, SJ^ftSS 



Td^m prospect of the lines along which Angiosperms may have been 

 E the Dicotyledons 

 1 Anient if era, as is 

 ation. Casuarina has seyera 

 a nun has a single 

 ument, Piperacece has a single 

 ndlesan in on. <* «u.r. rows 

 of wood and basl 



■"'.",'.' ' ■■'■■ ' ■:■■ : . ' : 



InLhopteris, which, in its tu 



! 



between another group of I '""" « ' •, 



^TnospermB^AnLong'the most interesting of the n 

 are the large group of Cycadoph,,tn knu« n as tin- ( /- 

 with (m dele, 



are scanty. They are divided into I wo I 



,.. In outward appearance the Itennellitef were u 

 tsle , t Purbeck belonged to 

 them). At the risk of repetition* Scott's ve. > f a- 

 the flowers of th produced.— 



"The center is occupied by the gymeceum seated 

 ir , pt l( ,, u „| , ... „, „f „■„„. t ,ns long-stalked ovules, mbe*W 

 among the interseminal s, , 



the hypogynous whorl of stamens, fused below- to form tat Jg 

 and expanding above into the pinnate sporophy I 

 numerous compound pollen sacs or synangia filled * .th , poUen 

 The whole is surrounded by an envelope of spirally arranged bram 



g~3£ ; ;:FiSiiS 



a kind li pericarp or ovary wall. When to these gen- 

 add the practically exalbuminous character of the sc 

 •organized, dicotyledonous embryo, the indications of affinity w a 

 higher flowering plants become extremely significant , Uu> ' ; 

 parison was drawn by Dr. Wieland in 1901, immediately on W- 



