2r)3 



s u c dir I' o r s I r o ni I h a I o I' t h c r c s I o I I Ii c I c n f 

 t h r o u g h a loss d i s 1 i ii c t I y s e r i a I c a r r ange ni c n I 

 of I h c cells a 11 (1 I 11 c o c c u r r v n c c o I si o m a t a . 



Sciadopilfis verticillatd Sieb. el Zuec. 



The vegelative syslcni is bnill up ol' long shools and sliorl 

 shools. The shorl shools may be chaiaclerizcd as symphyllods or 

 "doublc needlcs ". On the dorsal as well as on Ihc venlral side of Ihe 

 double needle therc is a median fiirrow or groovc. In the groovc of 

 the under side, which is covercd with papillae, the stomata are 

 visil)le, lying longitudinally and in more or less irregular rows. 

 The margins of the stomaliferous groove is charactcrized neithcr 

 by a specially marked culicular cnshion nor by an accumulalion 

 of ])apillae. The stomala are charactcrized by Ihe presence of 

 "Vorhof" and central pore (fig. 1). The 8 — 12 siibsidiary cells 

 each bear a papilla, which folds up över the slomalic aperture. 



Occurrence: the mountain forests of Japan. 



Geological age: recent. 



Sciadopitys tertiaria Menzel. 



Menzel described this spccies from Hcrzogenrath near Aachen 

 (Germany) under the generic name Sciadopitys. He found yoiing 

 strobili, isolated bracts and fragments of double needles. I have 

 studied the anatomy of the double needles and found thcm lo agree 

 very closely with Ihe symphyllods of the recent species (fig. 2 c — e). 

 This is true also in regard to Ihe struclure of stomala, which I 

 have studied in surfacc view as well as in seclions. 



Occurrence: Klärbccken and Herzogenralh: Weslern Germany; 

 Kokoschiilz: Silesia. 



Geological age: Upper Pliocene — Lower Mioccne. 



Sciadopitytes Eirikiana (Heer), comb. nov. 



This species was first erronously described by Heer (1874) as 

 bclonging to Piiuis. Only double needles, 18 — 24 mm in Icnglh 

 and 1,8 — 2 mm broad, have been discovered. On Ihe one side 

 there is a median slomatiferous groove, whose margins are charac- 

 tcrized by an accumulalion of papillae. The slomala are inosl 



