208 THE BOTANICAL MAGAZINE. rvoi. xxiv. No. 284. 



far deeper point toward tlie base ; then at the very end of the 

 series, Agathis Dammara, Cunninghamia sinensis (I have con- 

 firmed this in mature seeds, and Miyake's figures, 1910, of early 

 stages of ovules also confirm Richard's figure in the main), 

 Callitris rhomboidea, Juniperus virginiana, etc. are to be men- 

 tioned, where the nucellus seems to be free right down to the 

 base ; and from the Eichler's work above mentioned, Araucaria 

 hrasiliana is to be added to it. 



It must be noted, however, that these figures of Richard 

 which are wonderfully exact and masterpieces of the kind are 

 mostly from more or less mature seeds, so that the above 

 statement cannot be directly applied to the young stages of 

 ovules. No doubt there will be cases the above statements 

 must be changed when the early stages of development are to 

 be considered. Moreover I do not dare to assume that all the 

 figures of the above named authors are perfectly correct. It 

 is highly desirable to reexamine each case with the view of the 

 present question. Certainly there are other works of sy ste- 

 rn atists also to be referred, especially with regards the Angio- 

 sperms. Lawson's figures of ovular structures of Sequoia 

 sempervirens (1904), Cryptomeria japonica (1904), Libocedrus 

 decurrens (1907), and Sciadopytis verticillata (1910) indicate 

 that those plants have the nucelli which are free nearly to the 

 base. Besides the above mentioned Cunninghamia I myself have 

 examined the ripe seeds of Cryptomeria japonica and Sciadopytis 

 verticillata, and found that their nucelli are free nearly right 

 down to the base. Now we have seen that the seeds in which 

 the nucellus is nearly or completely free to the base from the 

 integument are not so rare as we once thought. 



When we now return to the question of the affinities of 

 Yezostrobus, it is also to be noted that some resembrance of 

 this seed to the Araucaria in having a single seed on the scale, 

 was not overlooked (Stopes and Fujii. I.e. p. 39). Though the 

 single seeded scale is not limited to the latter group, it is, 

 together with the formation of a definite cone in the Yezo- 

 strobus and Araucarinex is one of the most important point 

 to associate the two. Nevertheless they have been treated by 



