34 
with unreduced lamina, and fertile leaflets in which the lamina is partly or very 
largely reduced. I am therefore inclined to refer them to the species C. hymeno- 
phylloides pure and simple. 
Occurrence. -Malvern Hills (? Lower Jurassic); Mokoia, Gore (Lower Jurassic); 
Curio Bay, Waikawa (Middle Jurassic). 
Genus DICTYOPHYLLUM Bindley and Hutton, 1834. 
(Foss. Flora, vol. ii, pi. civ.) 
1. Dictyophyllum acutilobum (Braun). Plate XII, figs. 2-4. 
1847. Diplodidyum acutilobum, Braun, Flora, N.S., vol. v, p. 83. 
1862. Camptopteris exilis Braun, Palceontogr., vol. ix, p. 54, pi. xiii, fig. II a-d. 
18(18. Dictyophyllum acutilobum Schenk, Foss. Flora, Grcnzschich. Keup. do Lias Frank 
p. 77, pi. xix, figs. 2-5 ; pi. xx, fig. 1. 
1878 8(1. Dictyophyllum acutilobum Nathorst, Floran vid Bjuf, p. 38, pi. xi, fig. 1. 
1878. Dictyophyllum acutilobum Nathorst, Floran vid Hogands och llelsingborg , pp. 14, 44, 
pi. i, fig. 8. 
188(1. Camptopteris incisa Hector, Dal. Cat. do Guide, N. Zeal. Court, I ml. do Col. Exhib., 
p. (!fl, fig. 30a(8). 
1.900. Dictyophyllum, acutilobum Nathorst, K. svenska Vet.-Alead. Handl., vol. xli, No. 5, 
p. 13, pi. vi, fig. 24. 
Diagnosis .—Schenk (see above) defines this species as follows: Folia petiolata 
pedata, segrnenta digital o-pinnatilida, laciniie oblonga 1 , pinnatifidse basi crenatse, 
lacinea) secundaria) patentes sinu lato rotundato remotse integree obtusse, inferiores 
breviores ovato-lanceolatse, superiores oblongse subfalcatse, nervi primarii rigidi validi, 
secundarii per paria approximati alterni suboppositi vel oppositi, angulo recto egre- 
dientes apice in rote soluti, tertiarii angulo recto egredientes inter se ad maculas 
insequaliter hexagonales conjunoti, appendices in maculas insequales penta- vel hexa- 
gonales conjuncti, ramulis liberis, sori per paginam folii totam inferiorem sparsi 
rotundi, sporangia tres vel sex, globosa. 
Description of the Specimens . — All the examples of this genus from New Zealand 
are very fragmentary, although it appears to be of common occurrence in more than 
one locality. The apical fragment of a segment of a frond, figured by Hector in 
1886 as Camptopteris incisa sp. nov. from the Clout. Hills, is refigured on Plate XII, 
fig. 3. Two larger segments from Mataura Falls are also shown on the same plate, 
figs. 2 and 4, the latter somewhat enlarged. 
Remarks. In the New Zealand specimens the nerves appear to be rather more 
prominent than in European examples. 
Occurrence Mount Potts (Kinetic.); Clout. Hills (Kinetic); Mataura Falls (Lower 
Jurassic). 
2. Dictyophyllum obtusilobum ' l . (Braun). Plate VIII, figs. 1 and (?) 10 . 
1841$. Diplodidyum obtusilobum Braun, in Munster G., Beitr. Petrifacten-Kunde, Heft, vi, p. 14, 
pi. xiii, figs. 11, 12. 
1868. Dictyophyllum obtusilobum Schenk, Foss. Flora Qrenzschich. Keup. tfe Lias Frank., 
p. 75, pi. xvi, fig. I. 
1869. Dictophyllum obtusilobum Sohimper, Traitf. Pal. Vfijct., vol. i, p. 633, pi. xli, tig. 22. 
1878 86. Dictyophyllum obtusilobum Nathorst, Floran vid Bjuf, p. 37, pi. v, lig. 10; pi. vi, 
figs. 1-4; pi. viii, fig. 3. 
Diagnosis.- This species is defined by Schenk (see above) as follows: “ Folia 
? segrnenta profunde pinnatifida oblonga, laciniso sinu angusto rotundato 
remotse Integra) oblonga) jequilatso apice rotundatse patentissimso, nervi primarii 
?, secundarii excurrentes alterni per paria approximati, tertiarii angulo recto 
