Notes. 
2 53 
Names. 
Aspidium angular e, Willd., var. 
folio sum multifidum. 
var. acutifolium multifidum. 
Results. 
Gametophytic budding. 
Development of archegonial projections. 
( Ramenta on prothallus. 
pogamy. j y e g etat j ve b u d s (frequent). 
Gametophytic budding. 
Development of archegonial projections. 
No apogamy seen. 
Athyrium niponicum , Mett., nor- 
mal form. 
var cristatum. 
Gametophytic budding. 
Development of archegonial projections. 
Tracheides in prothalloid growths 
from archegonial projections. 
Similar to the normal form, but in addition a 
few apogamously-produced vegetative buds. 
Apogamy. 
Athyrium Filixfoemina , Bernh. 
var. percristatum. 
var. cruciatum cristatum. 
var. coronatum. 
Gametophytic budding. 
Development of archegonial projections. 
Development of cylindrical process from apex 
or from under-surface of the prothallus. 
! Tracheides in process. 
Continuation of process as a leaf. 
Vegetative buds. 
Polypodium vulgar e y L., var. 
grandiceps. 
Gametophytic budding. 
I Isolated leaf-like growths, 
pogamy. j y e g etat j ve b uc ] s (numerous). 
Aspidiumfrondosum, Lowe(from Apogamy. Vegetative buds produced on short 
the Pits, Royal Gardens, cylindrical processes before the culture had 
Kew). been watered. 
After the culture was watered, normal em- 
bryos. 
In addition to the species mentioned in the Table above, cultures 
were made of crested and uncrested forms of Nephrodium Filix-mas y 
Rich., representing the three sub-species, which are sometimes 
distinguished in this country. Some of these (both crested and 
normal) behaved in a similar manner to the species referred to in 
the Table, though only one instance of apogamy induced by long 
cultivation has as yet been found. Others (crested and normal forms) 
produced a single bud on the under-side of the prothallus which did 
not bear archegonia. 
Connecting this latter type of apogamy, which agrees with the 
description of De Bary and Kny, with the more normal prothalli, was 
one variety, the archegonia of which developed into typical arche- 
