MESOZOIC VL.WTS IMIO^F (IHN A. ol 



5. GINKGO LEPIDA Heer. 

 PI. IX. Fig. 2b. 



Giid-;/o lepula IIeeh, Jîeitr. /. Jurafloi-a Ostsil). ii. d. Amurl., p. (J2, |)1. 

 \'1I. li- 7, |.l. XII. Naolitra-, p. 17, pi. IV, fius. 71), 9-12, ])l. V, ti-s. la, 

 L>. ;5a. 4. 



Ginkgo cf. IcpUla VuKovama, -Jurassic Plants IVom Katia, llida ami ]'>lii- 

 zen, ]). ()0, ])1. XIV, %. 10. 



Oil the same piece of stone as the above species, there is 

 another fan-shaped leaf which has a petiole 2 mm. broad and 

 20 mm. long. This petiole above splits twice into two, each 

 branch bearing three to five narrow lobes which are shorter in 

 comjDarison with the breadth than in the ])receding species. The 

 length of the lobes varies, but the breadth is commonly about -) 

 to Oram, Their apices are bluntly pointed. Veins are few, 

 about five in number in the broadest part of the lobes. 



According to Heer, this species is distinguished from Ginkgo 

 sibirica Hr., an allied one, by the leaf splitting into more numer- 

 ous lobes which are narrower and pointed. 



6. CZEKANOWSKIA MURRAYANA (Lixdl. et Hutt.). 



PL X. Fig. 1. 



Czfkanon-iikia Murraijana Skwakd, The Jui-assic Floi-a I, p. 279, tcxt-fi".«. 

 48-50. 



Solenite-" Murmijüna Lixdlkv and Hittox, Fossil Flora of'(rreat Britain, 

 vol. Ill, pi. 121. 



Czekanon'sIcLa rlgida Heer, Beitr. zur JuraÜoi-a 1. c, pi. V and VI. Tpars). 

 Schenk in Eichthofen's China, vol. IV, p. 251 pi. L, %. 7. 



A piece of stone from Sai-ma-chi is covered with several 

 tufts of long narrow leaves, one to two millimeters in breadth. 



