Acer trilobatum Stbg. — Acrostichum palaeocenicum Fritel. 31 
*Acer trilobatum Stbg 1 . — Obermiocän, Württemberg; Abb. — Th. Engel (1), 
p. 551, Fig. p. 544. 
Acer trilobatum Stbg. — Tertiär bei Hermannstadt — Pax (5), p. 23. 
Acer species — Bernsteinkieferablagerungen, Dänemark; Vorkommen—N. Hartz (1), 
p. 120. 
*Acer species — Interglazial, Dänemark; Verbreitung; Abb. — N. Hartz (1), 
p. 144, 145, 148, 154, 159, 164, 170, 171, 175, 229, 262, Taf. XII, Fig. 5. 
Acer species — Miocän, Fladungen vor der Rhön — W. Wagner (1), p. 132. 
Acer species — Mittelmiocän, Brackische Schichten, Württemberg — Th. Engel (1), 
p, 538. 
Acer spec. — Tertiär, Tonkin; Vergleich mit chinesischen Acer-Arten — L. Lau¬ 
rent (3), p. 618, 619. 
Acerates amboyensis Berry — Kreide, Baritanformation, South Amboy, New Jersey; 
Beschr.; Synon. — Berry (10), p. 263. 
Acerates veterana Heer — Obermiocän, Heggbach, Württemberg — Th. Engel (1), 
p. 562. 
Acerates spec. Hollick, in: Newberry Fl. Amboy Clays, 1896, p. 124, Taf. 32, 
Fig. 17, Taf. 41, Fig. 4, 5 — zu A. amboyensis Berry — Berry (10), p. 263. 
Achnantes brevipes Ag. — Tertiär, Torrimpietra, Italien — Clerici (2), p. 672. 
Achnantes delicatula Ktz. — Tertiär, Furnas, Azoren — Chaves (1), p. 240. 
Achnantes lanceolata (Breb.) Grün. — Miocän, Jütland — N. Hartz (1), p. 64. 
Achnantes lanceolata(B>Y&o) Grün. — ?Quaternär, Biano, Italien — Bonetti (1), 
p. 57. 
Achnantes minutissima Ktz. var. cryptocephala Grün. — Miocän, Jütland — 
N. Hartz (1), p. 64. 
Achnantidium lanceolatum Breb. — Tertiär, Furnas, Azoren — Chaves (1), 
p. 240, 241. 
Acrocladium cuspidatum — Interglazial, Dänemark; Verbreitung —N. Hartz (1), 
p. 148, 151, 154, 166, 175, 228, 260. 
Acrostichites acuminatus Unger, Gen. et spec. pl. foss., 1850, p. 141 — zu 
Sagenopteris Nilssoniana Bgt. — Salfeld (3), p. 18. 
Acrostichites diphyllus Unger, Gen. et spec. pl. foss., 1850, p. 141 — zu 
Sagenopteris Nilssoniana Bgt. — Salfeld (3), p. 18. 
Acrostichites inaequilaterus Göppert, Syst, filic. foss., 1836, p. 227 — zu 
Sagenopteris Nilssoniana Bgt. — Salfeld (3), p. 18. 
Acrostichites inaequilaterus Unger, Gen. et spec. pl. foss., 1850, p. 141 — zu 
Sagenopteris Nilssoniana Bgt. — Salfeld (3), p. 18. 
Acrostichites princeps Schenk — Bhät, Altdorf — Stromer (1), p. 75. 
Acrostichites rhombifolius Fontaine, Older Mesozoic Flora of Virginia, 1883, 
p. 29, 105, Taf. VIII, Fig. 2, 3, Taf. XI, Fig. 1, 2, 3, Taf. XII, Fig. 1, 2, 
Taf. XIII, Fig. 1, 2, Taf. XIV, Taf. XLIX, Fig. 7; et var. rarinervis 
Fontaine, 1. c., p. 32, Taf. XII, Fig. 3 — zu Speirocarpus tenuifolius (Emmons) 
Krasser — Krasser (2), p. 25 — Krasser (3), p. 106. 
Acrostichites semicordatus Unger, Gen. et spec. pl. foss., 1850, p. 141 — zu 
Sagenopteris Nilssoniana Bgt. — Salfeld (3), p. 18. 
Acrostichites tenuifolius (Emmons) Fontaine, Notes on fossil plants, in L. F. Ward, 
Status of Mesozoic Floras of U. S., I, XX. Ann. Rep., 1898,1899, II, Washington, 
1900, p. 287, Taf. XXXIX, Fig. 4 — zu Speirocarpus tenuifolius (Emmons) 
Krasser — Krasser (2), p. 25. 
Acrostichopteris fimbriata Knowlt. — Kreide, Great Falls Coalfield, Montana — 
Fisher (1), p. 34. 
Acrostichum palaeocenicum Fritel — Eocän, Sparnacien, Bassin de Paris — 
P. H. Fritel (7), p. 317. 
