182 T. H. BUFFHAM ON BONNEMAISONIA HAMIFEKA. 



alternate, nearly linear, distichously pectinate with thorn-like 

 ramuli alternating with one or two female organs, a 

 ramulus always opposite to these organs. Ramnli tapering, 

 acute. Some of the lower pinnae are prolonged into a hook 

 bare of ramuli. Plant densely corticate. Cystocarps pedicel- 

 late. Antheridia unknown. 



Hab. California (Dickie, Farlow). 



Explanation of Plate IX. 

 Fig. 1. Bonnemaisonia hamifera Hariot. Portion of female 

 plant from Japan, h, h, hamose branches. Nat. 

 size. 



2. Ditto. Hamose branch x 5. 



3. Ditto. Young unfecundated plant from Falmouth. 

 h, a hamose branch. Nat. size. 



4. Ditto. Part of branchlet with ultimate ramuli, 

 procarps, and pseudo-cystocarps (a) x 10. 



5. Ditto. Apex of mucronate ultimate ramulus with 

 secund spines x 200. 



6. Ditto. Spiral base coiled round Ahnfeltia plicata 

 x 5. 



7. Ditto. Cortical cells of a portion of a branch 

 x 200. 



8. B. Califomiea (Dickie) Buffham. Female plant 

 from California, h, h, hamose branches. Nat. 

 size. 



9. Ditto. Portion of pinna with ultimate ramuli and 

 young cystocarps x 10. 



10. Ditto. Apex of ultimate ramulus x 200. 

 Figs. 1, 3, and 8 from photographs of dried specimens. 



