J. Schuster. — Cycadaceae. 5 



Embryo and seedling of Dioon spinulosum, Bot. Gaz. LXVII. (1919) 251 — 257. — 

 Saxton, The development of the embryo of Encephalartos, Bot. Gaz. XLIX. (1910) 

 13—18. — Matte, Sur la structure de l'embryon et la germination du genre Zamia, 

 Bull. Soc. Scientif. et medic. de l'Ouest XVIII. (1909). — Reynolds, Female Game- 

 tophyte of Microcycas, Bot. Gaz. LXXVII. (1924) 391 — 402. — W. H. Lang, Studies 

 in the development and morphology of cycadean sporangia. II. The ovule of Stangeria 

 paradoxa, Annais of Botany XIV. (1900) 281 — 306. — Ghodat, Stangeria paradoxa, 

 Bull. Soc. Herb. Boiss. 2. ser. V. (1905) 94. — Francis Grace Smith, Development 

 of the ovulate strobilus and young ovule of Zamia floridana, Bot Gaz. L. (1910) 128 — 

 141; Multiple cones in Zamia floridana, Bot. Gaz. LXXXVIII. (1929) 204 — 217. — 

 Kershaw, Structure and development of the ovule of Bowenia, Ann. of Bot. XXVII. 

 (1912) 625 — 646. — Ikeno, Die Spermatozoiden von Cycas revoluta. (Japanisch.) 

 Bot. Mag. Tokyo X. (Nov. 1896) 367 — 368; Vorläufige Mitteilung über die Spermato- 

 zoiden bei Cycas revoluta, Bot. Centralbl. LXIX. (1897) 1—3; Untersuchungen über 

 die Entwicklung der Geschlechtsorgane und der Vorgang der Befruchtung bei Cycas 

 revoluta, Jahrb. Wiss. Bot. XXXII. (1898) 557 — 602. — Miyake, Über die Spermato- 

 zoiden von Cycas revoluta, Ber. Deutsch. Bot. Gesell. XXIV. (1906) 78 — 83. — Die 

 japanische Mitteilung Sotetsu no Seichu ni Asuite findet man in The Botanical Maga- 

 zine, Tokyo XIX. (Okt. 1905) 232 — 240. — Shibata and Miyake, A few observations 

 on the physiology of the spermatozoids of Cycas revoluta, Bot. Mag. Tokyo XXI. 

 (1907) 7 — 11 — Kuwada and Mae da, On the structure of the cytoplasma around 

 the blepharoblast in Cycas revoluta, Mem. Coli. Sc. Kyoto Univ. IV. (1929) 165 — 174. 

 — Nakamura, The pollen mother cells in Cycas revoluta, Mem. Coli. Sc. Kyoto 

 Univ. IV. (1929) 353 — 369. — Kuwada, Further studies on the staining reaction 

 of the spermatozoids and egg cytoplasm in Cycas revoluta, Bot. Mag. Tokyo XL. 

 (1926) 198 — 201. — Webber, Peculiar structures occurring in the pollen tube of 

 Zamia, Bot. Gaz. XXIV. (1897) 453—459; The development of the antherozoids 

 of Zamia, Bot. Gaz. XXIV. (1897) 16 — 22; Notes on the fecundation of Zamia and 

 the pollen tube apparatus of Ginkgo, Bot. Gaz. XXIV. (1897) 225 — 235; Spermato- 

 genesis and fecundation of Zamia, U. S. Deptm. of Agric. Bur. PI. Ind., Bull. Nr. 2 

 (1901) 1 — 100. — Coulter and Chamberlain, The embryogeny of Zamia, Bot. Gaz. 

 XXXV. (1903) 184-194. — Isabel Smith, The nutrition of the egg in Zamia, Bot. 

 Gaz. XXXVII. (1904) 346 — 352. — Chamberlain, Spermatogenesis in Dioon edule, 

 Bot. Gaz. XLVII. (1909) 215 — 236; Fertilization and embryogeny in Dioon edule, 

 Bot. Gaz. L. (1910) 415 — 429. — Regel, Die Parthenogenesis im Pflanzenreiche, Mem. 

 Acad. Sc. Petersb. 7. ser. I. (1859) 1 — 48; Über Parthenokarpie, Bonplandia (1857) 

 302. — Gottsche in Bot. Zeitg. (1845) 378. — Ghabaud, Note sur une fructification 

 de V Encephalartos Altensteinii, Journal de la Societe centrale d'Horticulture de France 

 (1874) 710 — 712. — Duchartre, Sur un cas de grossissement, sans fecondation, des 

 ovules du Cycas revoluta, Bull. Soc. Bot. France IX. (1862) 531 — 533. — Usteri, 

 Parthenocarpia de Cycas revoluta, Rev. Soc. sc. Säo Paolo (1906) 177 — 179. — Gavara, 

 Gasi di partenocarpia nelle Gimnosperme, Bulletino Soc. Bot. Italiana (1913) 179. — 

 Hans Winkler, Parthenogenesis und Apogamie im Pflanzenreiche (1908) 35, 151. 



E. Bestäubung. - P. Knuth, Handbuch der Blütenbiologie III. (1904) 138. — 

 Rattray, Notes on the pollination of some South African Gycads, Transact. Roy. 

 Soc. South Africa III. (1913) 259 — 271. — Marloth, Note on the entomophilous 

 nature of Encephalartos, Transact. Roy. Soc. South Africa IV. (1914) 69 — 71. — Le 

 Goc, Effect on foreign pollination on Cycas Rumphii, Ann. Bot. Gard. Peradeniya 

 (1917) 187-194. 



F. Wärmephänomen. — H. de Vriese, Over eene verhoogde temperatuur bij 

 den mannelijken bloei van Cycas circinalis, waargenomen in 's lands plantentuin te 

 Buitenzorg door Teysman, Nederl. Kruidkundig Archief II. (1851) 172 — 190. — J. E. 

 Teysmann, EenigeAanteekeningen omtrent de Cycas circinalis, Nat. Tijdschr. Nederl.- 



