CHAPTER XXXV

PALAEOZOIC GYMNOSPERMOUS SEEDS. Pp. 300–365.

I. +Lagenostomales+ 308–318 =Physostoma= 309–312; =Conostoma= 313–316; =Sphaerostoma= 316; =Lagenostoma= 316; =Gnetopsis= 317, 318.

II. +Trigonocarpales+ 318–332 =Trigonocarpus= 319–321; =Tripterospermum= 321; =Ptychotesta= 321; =Hexapterospermum= 321–323; =Polypterospermum= 323; =Pachytesta= 323–326; =Stephanospermum= 326–329; =Polylophospermum= 329, 330; =Codonospermum= 330, 331; =Aetheotesta= 331, 332; =Eriotesta= 332; =Gaudrya= 332.

III. +Cardiocarpales+ 332–356 =Cardiocarpus= 338–340; =Cyclospermum= 340, 341; =Cycadinocarpus= 341; =Rhabdocarpus= and =Rhabdospermum= 341–345; =Mitrospermum= 345, 346; =Diplotesta= 346; =Leptocaryon= 346, 347; =Taxospermum= 347; =Compsotesta= 347, 348; =Samaropsis= 348–354; =Cordaicarpus= 354–356.

IV. +Miscellaneous Seeds+ 356–365 i. =Hexagonocarpus= 356,357; =Decagonocarpus= 357; =Polypterocarpus= 357, 358; =Rhynchogonium= 358–360; =Boroviczia= 360; =Diplopterotesta= 360, 361; =Musocarpus= 361; =Holcospermum= 361–363.

ii. =Malacotesta= 363; =Thysanotesta= 364; =Carpolithus= 364, 365; _Microspermum_ 365.