﻿Manchester Memoirs, Vol. xlix. (1905), No. VZ. 9 



M. Benson, F.L.S., has described a fructification, under 

 the generic name of Telangium, regarded by her as not 

 improbably belonging to Lyginodendron, with which it 

 occurs in association (Benson, '04.) It consists of groups 

 of long pointed sporangia, those of each group being 

 partly united together as in the synangia of Marattiaceous 

 Ferns. Perhaps the strongest argument adduced in favour 

 of the reference of these sporangia to Lyginodendron is 

 the striking agreement between the spores which they 

 contain and the pollen-grains found in the pollen-chambers 

 of Lagenostoma. 



As regards the CalymmatotJieca Stangeri of Stur, 

 which, as we have seen, was a form of fructification 

 belonging to a species of Lyginodendron, it is still uncer- 

 tain whether the cupule-like organs originally contained 

 the seeds or the pollen-bearing sporangia. 



Returning to the seeds themselves, it may be pointed 

 out that the two species Lagenostoma ovoides and L. pJiy- 

 soides, though not yet referred to the plants which bore 

 them, show such manifest affinity with the seed of Lygino- 

 dendron oldJiamium, as to leave no doubt that they belonged 

 to closely related plants. L. ovoides only differs in details 

 from L. Lomaxi. The other species, L. pJiysoides, is more 

 peculiar, its most striking character consisting in the fact 

 that at the free end of the seed, the testa breaks up into 

 a sheath of free tentacles surrounding the apex of the 

 nucellus, a condition not known in any other seed, recent 

 or fossil. In neither case has a cupule yet been observed. 

 We await a full investigation of these seeds at the hands 

 of Prof. Oliver. Other seeds referable to the genus Lage- 

 nostoma, as at present constituted, have been found in the 

 condition of impressions or casts. Two such species were 

 described by Mr. Newell Arber last week before the Royal . 

 Society (Arber, '05). One of them, Lagenostoma Sin- 



