666 



MOSSES AND FERNS 



Lang, W. H. — i. Alternation of Generations in the Archegoniates. 

 Ann. of Bot., xii: 583-592, 1898. 



2. On Apogamy and the Development of Sporangia upon Fern-pro- 



thalli. Phil. Trans. Roy. Soc, ser. B, vol. 190, 1898. ' 



3. On. Apospory in Anthocer OS loevis. Ann. of Bot., xv: 503-510, 1901. 



4. On the Prothalli of Ophioglossum pefidulum and Helmintho^achys 



zeylanica. Ann. of Bot., xvi: 23-56, 1902. 

 On a Prothallus provisionally referred to Psilotiun. Ann. of Bot., 



xviii: 571-577, i904- 

 On the Morphology of Cyathodium. Ann. Bot., xix: 411-426, 



1905. 

 On the Sporogonium of Notothylas. Ann. Bot., xxi : 201-211, 



1907. 

 8. A theory of Alternation of Generations, based on Ontogeny. 



New Phytologist, viii : 1-2, 1909. 

 On a Suspensor in Helminthostachys. Ann. Bot., xxiv: 611, 



1910. 



10. On the Interpretation of the Vascular Anatomy of the Ophio- 



glossaceae. Mem. Proc. Manchester Liter, and Phil. Soc, 

 Ivi : Part II. No. 12, 1912. 



11. Studies in the Anatomy of the Ophioglossaceae. I. On the 



Branching of Botrychium Lunaria. Ann. Bot., xxvii: 203- 

 242, 1913. 



12. The Embryo of Helminthostachys. Ann. Bot., xxviii: 19-37, 



1914. 



13. The Anatomy and Branching of the Rhizome of Helminthostachys. 



Ann. Bot., xxix : 1-54, 1915. 



14. Studies in the Morphology of Isoetes, I. The Stock of Isoetes 



lacustris. Mem. and Proc. Manchester Lit. and Phil. Soc, 

 lix : 28 pp., 1915. 

 Lawson, a. a. — I. The ProthaUus of Tmesipteris Tannensis. Trans. 

 Royal Soc. Edinb., li, Part III : 785-794, 1917. 

 2. The Gametophyte Generation of the Psilotaceae. Ihid., Hi, Part 



I: 93-113, 1917. 

 Leavitt, R. G. — I . The Root-hairs, Cap and Sheath of Azolla. Bot. 

 Gaz., xxxiv : 414-418, 1902. 

 2. Trichomes of the Roots in Vascular Cryptogams and Angiosperms. 

 Proc. Boston Soc. Nat. Hist., xxxi : 273-313, 1904. 

 Leclerc du Sablon. — I. Sur le sporogone des Hepatiques et le role 

 des elateres. Bulletin de la Soc. bot. de France, t. xxxii, pt. i : 30, 

 1885. 



2. Sur la developpement du sporogone de Frullania dilatata. Bui. de 



la Soc. bot. de France, t. xxxii, pt. 4 : p. 187, 1885. 



3. Recherches sur la developpement du sporogone des Hepatiques. 



Ann. des Sci. natureUes, ser. vii, t. ii : 126-180, 1885. 



