Studies in the Development and Morphology 
of Cycadean Sporangia: 
II. The Ovule of Stangeria paradoxa. 
BY 
WILLIAM H. LANG, M.B., D.Sc., 
Lecturer in Botany, Queen Margaret College , and Clark Scholar, 
Glasgow University. 
With Plates XVII and XVIII. 
HE material, upon which the present investigation was 
-L made, was obtained from plants of Stangeria paradoxa 
growing in the Royal Botanic Gardens at Kew and Edinburgh, 
The cones, which served for the study of the development 
of the ovule, came from the Kew plant, while the fertilized 
ovules were the result of Mr. Harrow’s successful artificial 
pollination of two cones, borne on a plant in the Edinburgh 
Gardens, with pollen from Kew. I am indebted to the 
Director of the Royal Gardens, Kew, and to Professor 
I. B. Balfour for placing the material at my disposal. 
Although the result of examination of the ovule and seed 
in this interesting genus of Cycads has been to show a general 
agreement with the corresponding structures in the genera 
already investigated 1 , the main stages will be briefly described. 
1 Cf. especially Warming, Oversigter d. k. dan. Vidensk. Selsk. Forhandl. 1877, 
1879. Trenb, Ann. Jard. Bot. Buitenzorg, 1885. 
[Annals of Botany, Vol, XIV. No. LIV. June, 1900.] 
