224 ^I- YOKOYAMA ; MESOZOTC TliAXTS 



rtrinpJii/IImn Buchianum. — Ettingsliansen, Beitrz. Flora. d. "Wealdoiiperiode, p. 21, 

 pi. I, tig. 1. Schenk, Die Fossilen Pflanzen d. Wernsdorferscliicliten i. d. Nord Carp, 

 p. 8, PJ. Ill, fig. 5. 



]')i(>()iiitcs JJuchi'iiiii.s. — Fontaine, Tlio Potomac or Younger Mesozoie Flora, p. 182, 

 pi. LXVIII, tig. 1, LXIX, 1, 8, LXXI, 1, LXXII, 1, 2, T.XXIII, 1-3, LXXIV, 1-3. 



Tliis plant first pointed out l)y Xatliorst as occuiTing- at liyöseki 

 is ])rofuse]y represented in my collection. A specimen shown in fi,u'. 

 (!, pi. XXIII is from Sakamoto. It represents a leaf belono-ing to its 

 upper pnrt. The leaflets are narrower than those fig'nred 1)y Xathorst, 

 the l)roadest being about 5 mm. with 15-LS veins. It looks more like 

 fig. 2, pi. LXX of Fontaine. Tlie specimens from otlua- localities 

 show no essential difference from those descril^ed l)y Xathorst. In 

 some, however, the apex of the leaflets were observed, and in o\\o from 

 Kaisekiyama it was Itlnntl}^ pointed (fig. i'yah. PL XX\']I), wliile in 

 that of Yuasa it was acute (fig. 2, PI. XXII.). 



P(^ntaine in describing this species from the Potoma.r-. where it 

 seems to be very abundant, used the generic name oï J)lii()Niffs. but as 

 this name is now applied to a cycsid whose leaflets or segments are 

 attached in front of the rachis with their whole base, it would lie 

 advisnl)le to retain that ]iroposed by Xathorst. 



JjOC. — Kaisekiv'uiia. A'^nasa, Sakamoto, Tanno. Kagahara, Tögo- 

 dani, Ishiseki, Kataji. According to Xatln^ii-st, the plant occurs also at 

 Otaiii. T(~)riknbi. and I eno. 



18a. Zamiophylluni Buchianuni Et-i. sp. 

 var. angustifolia Font. 



PI. XXII, Fig. 4. PI. XXY, Fin;. 5. PI. XXVIU, Figs. 8. !). 



Piimiitcs Bitchicmiis ntr. (nuiii-stijoliiis. — Fontaine, Tlie Potomac or Yoniiger 

 Mesozoie Flora, p. 185, pi. LXYII, ilg. (>, LXVIII, 4, XYI, 2. 



