177 



at New Town, Bichmond, and Spring Hill, associated with 

 Alethopteris Australia, Thinnfeldia obtusifolia, and other 

 common Mesozoic form. 



Associated with the larger fragments I was fortunate in 

 obtaining the male and female fructification, which perfectly 

 corresponds with the characteristic description given under 

 the genus. The female fruit, drupe, or nut, is small and 

 rouud, exserted on tbe extremities of one of the bifurcating 

 branchlets, which are evidently modified into paired fruiting 

 pedicels, one seed to each pedicel. The pair of short pedicels 

 are symmetrically recurved in opposite directions ; the male 

 flower consists of minute clusters of bract-like scales or 

 anthers, attached to a common pedicel, and evidently radiat- 

 ing from a common centre. Several pedicellate clusters near 

 to each other towards the extremities of branchlets. The 

 scale-like bracts are generally ovate and slightly wrinkled. 

 There can be no doubt, therefore, of the reference to Baiera. 

 Diameter of seed, about 8 millimetres ; length of fruiting 

 pedicel, about 8 millimetres. It is very probable that the 

 plant from Queensland described by Tenison Wood, and 

 classed among ferns as Jeanpaulia Helens, is a species of 

 Baiera. The Tasmanian species is very graceful in form, 

 and is one of the most abundant plants occurring in the 

 Mesozoic shales at New Town. 



Genus Salisburia. 



Foliage springing from petiole, spathulate or flabellate, 

 more or less developed towards the extremity ; outline of fan 

 rarely simple. Margin crenulate, very frequently its lobes 

 are deeply and dichotomously divided and traversed by 

 numerous nervules. 



Salisburia Hobartensis. Nou. sp. 



Frond imperfect. (Comp. S. lepida, Heer. One of the 

 principal divisions only preserved in the specimen now de- 

 scribed.) Principal lobe deeply cleft into two lanceolate 

 segments. Nervules traversing, each lobe fine dichotomous. 

 It is probable that the perfect frond would possess from 6 

 to 7 principal spreading lobes, each of which would be cleft 

 as in the pair described. Length of each segment about 50 

 millimetres. 



Genus Ginhgophyllum. Saporta. 



Branches thick, bearing long cuneiform leaves, which are 

 narrowed into a petiole at the base, decurrent, divided into 

 dichotomous segments ; nerve distinct, fine, and closely set. 



K 



