the Inflorescences and Flowers of Ephedra . 
985 
DESCRIPTION OF PLATE LXXXV. 
Illustrating the paper by Mrs.Thoday and Miss Berridge on the Inflorescences and Flowers of Ephedra. 
Fig. 1. Young male inflorescence of E. distachya, consisting of peduncle bearing three strobili. 
St. = sterile bracts ; B = fertile bracts, in the axils of which are the male flowers. The young 
synangia, enclosed in the two leaf-like appendages (p) are seen projecting a little way out between 
the bracts, x 16. 
Fig. 2. Basal portion of female inflorescence of E. altissima, showing loose cluster of female 
strobili borne on a branched axis which hangs downwards from the climbing stem, x 2. 
Fig. 3 a. Single female strobilus of E. distachya , detached from its position in the axil of a leaf 
on the ordinary vegetative stem, x 2. 
Fig. 3 b. Single female strobilus of E.fragilis in situ. The micropylar tubes of the two ovules 
can be seen projecting from the enclosing bracts, x 16. 
Fig. 3 c. Single female strobilus of E. alata , showing the numerous membranous bracts with 
prominent midribs, and two projecting ovules, x 2. 
Fig. 3 d. Single ovule of E. alata , showing one of the three wings, x 2. 
Fig. 4. Male sporangiophore of E. distachya , front view, bearing eight synangia. x 16. 
Fig. 5 a. Male sporangiophore of E. nebrodensis, front view. x 16. 
Fig. 5 b. Male sporangiophore of E. nebrodensis , back view, x 16. 
Fig. 5 c. Young male sporangiophore of E. nebrodensis , seen in bud, enclosed by two leaf-like 
appendages, x 16. 
Fig. 6 a. Male sporangiophore of E. altissima , young, bearing two synangia. x 16. 
Fig. 6 b. Ditto, older. The long transparent stalk is seen to be traversed by two vascular 
bundles (vb). x 16. 
Fig. 7. Transverse section through portion of bract of outer cupule. Tr = transfusion tissue, 
x 78. 
Fig. 8. Longitudinal section through stoma of bract, showing cuticularized ridges, x 116. 
Fig. 9. Apex of cone of E.fragilis, showing the two ovules with their integuments, c = cup 
of suberized cells, x 25. 
Fig. 10. Ovule of E. altissima with double nucellus, only the left-hand half of which is fertile ; 
the two inner integuments, free at the base, are fused at the apex into one. d. n. = double nucellus, 
the left-hand half of which contains a prothallus {pro.) ; i.int. = inner integument. 
Fig. 1 1 a. Transverse section of apex of young unfertilized ovule of E. distachya. b = brown 
tissue ; 1 = still open micropylar tube with cuticularized lining ; p = papillae ; Tr — transfusion 
tissue, x 1 16. 
Fig. 11 b. External view of nut of E. distachya , showing small angles, x 16. 
Fig. 12. Longitudinal section of apex of nucellus of E. fragilis, showing deep pollen- 
chamber. x 90. 
