STE.— STI.] 



PLANTS. 



145 



squamosa, Lesquereux, 1880, Coal Flora 

 of Pa., p. 339, Coal Meas. 



wortheni, Lesquereux, 1866, (Caulopteris 

 wortheni,) Ceo. Sur. 111., vol. 2, p. 459, 

 Coal Meas. 

 Sternbergia, Artis, 1825, Antediluvian 

 Phytology, p. 8. [Ety. proper name.] 

 The piths of Dadoxylon, Sigillaria, and 

 other plants usually preserved as casts 

 in sandstone, retaining more or less 

 perfectly the transverse partitions into 

 which the pith cylinders were divided 

 in the process of growth. Type S. 

 transversa. 



transversa, Steinhaur, 1818, (Phytolithus 

 transversus,) Trans. Am. Phil. Ass'n., 

 vol. 1, p. 295, Coal Meas. 



var. angularis, Dawson, 1865, Quar. Jour. 

 Geo. Soc, vol. 22, p. 165, Coal Meas. 



Fig. 78. — Sternbergia augularis, 

 pith of Dadoxylon. 



var. approximata, Dawson, 1865, Quar. 

 Jour. Geo. Soc, vol. 22, p. 165, Coal 

 Meas. 



var. distans, Dawson, 1865, Quar. Jour. 

 Geo. Soc, vol. 22, p. 165, Coal Meas. 



var. obscura, Dawson, 1865, Quar. Jour. 

 Geo. Soc, vol. 22, p. 165, Coal Meas. 

 Stigmaria, Brongniart, 1S22, Class, d. Veg. 

 Fo8S. in Mem. du. Mus. d'Hist. Nat. d. 

 Paris, torn. 8, p. 203. [Ety. stigma, a 

 dot or puncture.] Floating stems or 

 roots, generally growing horizontally, 

 distantly dichotomous ; branches long, 

 scarcely variable in size in their whole 

 length, subcylindrical or compressed; 

 pith, a woody cylinder, often eccen- 

 trical, composed of fascicles of vessels 

 disposed star-like ; leaves long, tubulose, 

 linear when flattened, leaving after dis- 

 ruption, on the surface of the stems, 

 round scars composed of two concen- 

 trical rings, with a central umbonate 

 mammilla, pitted in the middle by a 

 punctiform vascular scar. Type S. 

 ficoides. 



amcena, Lesquereux, 1880, Coal Flora of 

 Pa., p. 516, Coal Meas. 



anabathra, Corda, 1845, Beitrage zur Flora 

 der Vorwelt, p. 34, Coal Meas. 



areolata, Dawson, 1871, Foss. Plants Can- 

 ada, p. 23, Devonian. 



costata, Lesquereux, 1858, Geo. Sur. Pa., 

 vol. 2, p. 870, Coal Meas. 



elliptica, Lesquereux, 1870, Geo. Sur. HI., 

 vol. 4, p. 451, Coal Meas. 



eveni, see Stigmarioides eveni. 



exigua, Dawson, 1862, Quar. Jour. Geo. 



Soc, vol. 18, p. 308, Chemung Gr. 

 ficoides, Brogniart, 1822, Mem. du. Mus. 



d'Hist. Nat. de Paris, torn. 8, p. 203, 



Coal Meas. 

 ficoides var. a, b, c, d, e, f, g, h, i, k, 1, 



Dawson, 1865, Quar. Jour. Geo. Soc, 



vol. 22, p. 148, Coal Meas. 

 ficoides var. reticulata, Gceppert, 1841, 



Gatt. d. Foss. Pflanzen, p. 13, Coal 



Meas. 

 ficoides var. stellata, Gceppert, 1841, Gatt. 



d. Foss. Pflanzen, p. 13, Coal Meas. 

 ficoides var. undulata, Gceppert, 1841, 



Gatt. d. Foss. Pflanzen, p. 13, Coal 



Meas. 

 irregularis, Lesquereux, 1858, Geo. Sur. 



Pa., vol. 2, p. 870, Coal Meas. [Ety. 



from the irregularity of the scars.] 

 minor, Gceppert, 1841, Gatt. d. Foss. Pflan- 

 zen, p. 13, Coal Meas. 

 minuta, Lesquereux, 1858, Geo. Sur. Pa., 



vol. 2, p. 871, Coal Meas. 

 minutissima, Dawson, 1871, Foss. Plants 



Can., p. 23, Devonian, 

 perlata, Dawson, 1871, Foss. Plants Can- 

 ada, page 22, Devonian, 

 pusilla, Dawson, 1863, Quar. Jour. Geo. 



Soc, vol. 19, p. 460, Devonian, 

 radicans, Lesquereux, 1858, Geo. Sur. Pa., 



vol. 2, p. 870, Coal Meas. 

 stellaris, Lesquereux, 1870, (Sigillarioides 



stellaris,) Geo. Sur. 111., vol. 4, p. 450, 



Coal Meas. 

 umbonata, Lesquereux, 1858, Geo. Sur. 



Pa., vol. 2, p. 870, Coal Meas. 



Fig. 79.— Stigmaria iicoides, % diara. 



Stigmarioides, Lesquereux, 1870, Geo. Sur. 

 111., vol. 4, p. 452. [Ety. from its re- 

 semblance to Stigmaria.] Fragments of 

 rhizomas, with surface marked by 

 small round impressions, irregularly 

 disposed and without central vascular 

 points, base of detached radicles or fila- 

 ments. Type S. eveni. 



affinis, «ee Rachiopteris affinis. 



eveni, Lesquereux, 1866, (Stigmaria 

 eveni,) Geo. Sur. 111., vol. 4, p. 448, Coal 

 Meas. 



linearis, Lesquereux, 1870, Geo. Sur. 111., 

 vol. 4, p. 455, Coal Meas. 



rugosus, Lesquereux, 1870, Geo. Sur. 111., 

 vol. 4, p. 470, Coal Meas. 



selago see Rachiopteris selago. 



