408. _Lagenospermum Sinclairi_; _Lagenostoma_; _Calymmatotheca Stangeri_; _Crossotheca Hoeninghausi_ 57 409. _Lagenostoma_ 58 410. _Lyginopteris oldhamia_ 69 411, 412. _Heterangium Grievii_ 73, 76 413. _Sphenopteris elegans_ 78 414. _Sphaerostoma ovale_ 79 415. _Heterangium Grievii_; _H. tiliaeoides_; _Lyginopteris_ root 82 416. _Medullosa_ (stem-anatomy) 92 417. _Medullosa centrofilis_ 96 418. _Myeloxylon radiatum_; _Medullosa stellata_; _M. Leuckarti_ 103 419. _Medullosa Leuckarti_ 104 420. _Myeloxylon radiatum_; _Medullosa anglica_, and _Medullosa_ sp. 107 421. _Potoniea adiantiformis_; _Linopteris obliqua_; _Neuropteris heterophylla_ 111 422. _Neuropterocarpus Kidstoni_. [Edinburgh Royal Society.] 114 423–426. _Trigonocarpus Parkinsoni_ 118, 120, 121 427. _Codonotheca caduca_. [New Phytologist.] 125 428. _Whittleseya elegans_; _W. brevifolia_ 128 429. _Whittleseya elegans_ 130 430–432. _Dolerophyllum Goepperti_ 133, 134, 137 433. _Ottokaria bengalensis_. [Indian Geol. Survey.] 140 434. _Strobilites Milleryensis_ 141 435, 436. _Colpoxylon aeduense_ 143 437, 438. _Rhexoxylon africanum_ 146, 148 439, 440. _Sutcliffia insignis_ 150, 151 441. _Steloxylon Ludwigii_ 163 442. _Pecopteris Pluckeneti_ 167 443. _Eremopteris artemisaefolia_; _Samaropsis acuta_ 170 444. _Samaropsis acuta_. R. Kidston 171 445. _Wardia fertilis_ 172 446–448. _Megaloxylon Scotti_. [Camb. Phil. Soc.] 176–178 449, 450. _Rhetinangium Arberi_. W. T. Gordon 182 451. _Stenomyelon tuedianum_ 183 452. _Stenomyelon tuedianum_. R. Kidston 185 453. _Ptychoxylon Levyi_; _Cycadoxylon Fremyi_; _C. robustum_ 188 454, 455. _Calamopitys Saturni_. M. Zalessky 191, 192 456. _Kalymma grandis_ 195 457. _Eristophyton fasciculare_ 197 458. _Eristophyton Beinertianum_. M. Zalessky 199