142 



PLANTS. 



[SPH. 



saxifragifolium, Sternberg, 1825, (Rotu- 

 laria saxifragifolia,) Vers. Darst. Flora 

 der Vorwelt, and Coal 

 Flora of Pa., p. 726, Coal 

 Meas. 



schlotheimi, Brongniart, 

 1828, Prodr. Hist. Veg. 

 Foss., p. 68, and Coal 

 Flora of Pa., p. 52, Coal 



FIG. 73. 



Sphenophyllum 

 schlotheimi. 



tenerrimum, Stur, 1877, 

 Culm. Flora, p. 108, and 

 Coal Flora of Pa., p. 728, 

 Coal Meas. 



trifoliatum, Lesquereux, 

 1858, Geo. Sur. Pa., vol. 

 2, p. 853, Coal Meas. 

 SPHENOPTERIS, Brongniart, 1822, Mem. du 

 Mus. d'Hist. Nat. de Paris, torn. 8, p. 

 203. [Ety. sphen, wedge: pteris, fern.] 

 Fronds bi, tri, polypinnate ; divisions 

 open or in right angles; pinnules nar- 

 rowed at base, often decurring or cunei- 

 form, pinnately lobed ; lobes rarely 

 entire, crenulate, dentate, or laciniate ; 

 primary nerve slender, alternately 

 dichotomous, simple, branches entering 

 the bas3 of each lobe to pass by 

 branchlets into the subdivisions of the 

 lamina. Type S. elegans. 



abbreviata, see Pseudopecopteris abbrevi- 

 ata. 



acrocarpa, Fontaine & White, 1880, Perm, 

 or Up. Carb. Flora, p. 40, Coal Meas. 

 or Permian. 



acuta, See Pseudopecopteris acuta. 



adiantoides, Lindley & Hutton, 1835, 

 Foss. Flora, vol. 2, p. 91, Coal Meas. 



alata, Brongniart, 1828, (Pecopteris alata,) 

 Hist. d. Veg. Foss., p. 361, Coal Meas. 



alabamensis, see Oligocarpia alabamen- 

 sis. 



artemesi&folia see Eremopteris arteme- 

 siifolia. 



auriculata, Fontaine & White, 1880, Perm, 

 or Up. Carb. Flora, p. 42, Coal Meas. 

 or Permian. 



ballantini, Andrews, 1875, (Hymenophyl- 

 lites ballantini,) Ohio Pal., vol. 2, p. 

 422, Coal Meas. 



brittsi, Lesqu^reux, 1880, Coal Flora of 

 Pa., p. 277, Coal Meas. 



canadensis, Dawson, 1863, Can. Nat. and 

 Geol., vol. 8, and Acad. Geol. p. 243, 

 Coal Meas. 



cha>rophylloides, Brongniart, 1828, (Pe- 

 copteris chserophylloides,) Hist. d. Veg. 

 Foss., p. 357, and Coal Flora of Pa., p. 

 270, Coal Meas. 



communis, Lesquereux, 1884, Coal Flora 

 of Pa., p. 762, Coal Meas. 



coriaeea, Fontaine & White, 1880, Perm, 

 or Up. Carb. Flora, p. 41, Coal Meas. 

 or Permian. 



crenata, Lindley & Hutton, 1835, Foss. 

 Flora, vol. 2, pi. C., and Coal Flora of 

 Pa., p. 835, Coal Meas. 



cnstata, Brongniart, 182s, (Pecopteris 

 cristata,) Hist. d. Veg. Foss.. p. 356, 



and Coal Flora of Pa., p. 273, Coal 



Meas. 

 davallana, Gceppert, 1841, Gatt. d. Foss. 



Pflanzen, Cual Meas. 



decipiens, see Pseudopecopteris decipiens. 

 delicatula, see Hymenophyllites delica- 



tulus. 

 dentata, Fontaine & White, 1880, Perm. 



or Up. Carb. Flora, p. 42, Coal Meas. 



or Permian. 

 dilatata, as identified by Lesquereux. 



Syn. for Pseudopecopteris decipiens. 

 dissecta, Brongniart, 1828, Hist. d. Veg. 



Foss., p. 183, and Coal Flora of Pa., p. 



836, Coal Meas. 

 divaricata, Greppert, 1836, (Cheilanthes 



divaricatus,) Syst. Filic. FOSP., p. 238, 



and Coal Flora of Pa., p. 767, Coal 



Meas. 

 dubuissoni. Brongniart, 1828, Hist. d. 



Veg. Foss., p. 195, and Coal Flora of 



Pa., p. 275, Coal Meas. 

 elegans, Brongniart, 1822, Class, d. Veg. 



Foss. pi. 2, fig. 2, and Coal Flora of Pa., 



p. 287, Coal Meas. 

 fascicularis, Roemer, 1866, Beitr. in Pal- 



eont., vol. 9, p. 179, and Coal Flora of 



Pa., p. 837, Coal Meas. 

 flaccida, Crepin, 1874, Bull. Acad. Roy. of 



Belgium, p. 7, and Coal Flora of Pa., p. 



291, Coal Meas. 



Fio. 74. Sphenopteris crenata. 



flagellaris, see Oligocarpia flasellaris. 

 flexicaulis, Lesquereux, 1860, (Hymeno- 

 phyllites flexicaulis,) Geo. Sur. Ark., 



vol. 2, p. 309, Coal Meas. 

 foliosa, Fontaine & White, 1880, Perm, or 



Up. Carb. Flora, p. 44, Coal Meas. or 



Permian. 



fuciformis, Lesquereux, 1884, Am. Natu- 

 ralist, vol. 18, p. 921, Carboniferous, 

 furcata, Brongniart, 1828, Hist. d. Veg. 



Foss., p. 179, and Coal Flora of Pa., p. 



282, Coal Meas. 



gersdorfii, see Hymenophyllites gersdorfii. 

 glandulosa, see Pseudopecopteris glandu- 



losa. 

 goniopteroides, Lesquereux, 1880, Coal 



Flora of Pa., p. 269, Coal Meas. 

 gracilis, Brongniart, 1828, Hist. d. Veg. 



Foss., p. 197, and Coal Flora of Pa., p. 



276, Coal Mpas. 

 gravenhorsti, Brongniart, 1828, Hist. Veg. 



d. Foss., p. 191, and Coal Flora of Pa., 



p. 274, Coal Meas. 



