98 



lacrimata the twigs are glabrous or nearly so, the leaves with 

 their narrow blades only slightly if at all pubescent, except on the 

 petioles, and not glandular, while the pedicels and the hypanthium 

 are glabrous. The types pecimens (Biltmore Herbarium no. B 17 

 and B 969) are in the Herbarium of the X. Y. Botanical Garden. 

 The plants flower during the first half of April, good flower- 

 ing specimens having been collected on April 8, 1899, while the 

 fruits ripen after the middle of August and have fallen, usually 

 before the first of September. 



REVIEWS 



Seed Plants* 



The first part of the " Morphology of Spermatophytes " deals 

 with the Gymnosperms alone, and is presented as the outgrowth 

 of a course of lectures and laboratory work at Chicago Uni- 

 versity. A chapter is devoted to each of the four orders, 

 Cycadales, Ginkgoales, Coniferales and Gnetales. In the sec- 

 tions of these chapters on vegetative organs there are a number 

 of half-tone habit illustrations from photographs but the majority 

 of original illustrations are those of the development of the ovule 

 and pollen grain in Pinns Laricio by Chamberlain. 



The chapter on the Conifers is naturally the most detailed, 

 both from the present importance of the group in the temperate 

 zone, and since more morphological and cytological work has 

 been done on it. The Gnetales are treated purely from com- 

 parison of literature owing to difficult}- in obtaining material. 

 The internal treatment of each group is what one would expect, 

 dealing first with the vegetative organs including a limited 

 amount of anatomy, more especially of the stem. The spore- 

 producing members, the gametophytes and the embryo are the 

 other sections of these four chapters. One realizes in comparing 

 the review of the embryology of the four groups how much work 

 is still to be done in tracing the stages of the development of 

 the critical regions of the embryo itself. The authors have, it 

 seems, not added to our knowledge on this point. The question 

 of the possible homologies of the ovuliferous scale and bract is 

 considered at some length and a working decision given in favor 



* Coulter, John M., and Chamberlain, Charles J. Morphology of Spermato- 

 phytes. Part I. Gymnosperms, 8vo., pp. x -j- 188. D. Appleton & Co., N. Y., 

 1901. Price, SI. 75. 



