referable to this ^rouij rather than to the I'ilicales, the direct evi- 

 dence for which has been slow in coming to li^ht. 



Before the publication of the final results of Messrs. Oliver and 

 Scott, however, Kidston * announced the discovery of rhabdo- 

 carpous seeds on the rachis of Neuropicris hetcrophylla , a mem- 

 ber of the MeduUoseae, adding confirmation to the suspicion that 

 the seeds known as Trifjonocarpons were referable to this family 

 of the Cycadofilicales.f 



Following Kidston's discovery we find Grand 'Kury X i" March 

 of this year and again in July, arguing before the French 

 Academy the probability of the reference of certain of the silici- 

 fied seeds from St. ICtiennc to various Filicean species. 



In March we have further comments by Zeiller § ; and Renault || 

 in May reports his conviction that the seed Stcphanospernmni 

 from Autun belongs to Calamodendron or Arthropitys. We 

 learn further from Oliver and Scott's memoir that Arber is about 

 to describe a fossil in which numerous Lagcnostouia-XxV^ seeds 

 are supposed to belong to a Sp/icnopteris frond. 



With regard to the microsporangial apparatus of these various 

 plants we know little beyond the suggestive work of Miss Ben- 

 son ^ on Telangiuni, which she regards as the microsporangial 

 synangium of Lyginodcndroii. We are on safe ground in the 

 assumption that in each of the three great cryptogamic phyla 

 of the Paleozoic the seed habit was at least approximated, c. g., 

 among the fern-like plants we have positive proof in the case of 



* Kidston, R. I'roc. Roy. See. Loud. 72: 487. I) 1905. 



Oliver, F. W. New Phytologist, 4 : 32. 1904. 



Kidston, R. Pliilos. Trans. Roy. .Soc. I.ond. 15. 197 : 1-5. 1904. [lllnst.] 



f Wild. On Trij^onocarpon olivaeforinf. Trans. Manchester Geol. Soc. 16. 1900. 



Scott, D. U. On the Orijjin of Seed-bearing Plants. Roy. Inst. May 15, 1903. 



Oliver, Y. W. Notes on Trigo>ioc<ir/'ns, etc. New Phytologist, 3: 96-104.//. 

 2. 1904. 



j Grand 'Eury. Sur les rhizomes et les racines des Fougtires fossiles et des Cyca- 

 dofilices. Compt. rend. 138 : 607-610. 1904. 



Grand 'Eury. Sur les graines des Neuropteridees. Ibid. 139: 23-27. 1904. 



? Zeiller, R. Observations au sujet du mode de fructification des Cycadofilicin^es. 

 Ibid. 138: 663-665. 1904. 



II Renault, H. (^uelques remarques sur les cryptogames anciennes et les sols fos- 

 siles de vegetation. Ibid. 138: 1237-1239. 1904. 



Tf Benson, M. Ann. Hot. 18: 161-177. //. //. 1904. 



