WHITE.] NOTES ON CHAKACTEEISTIC SPECIES. 909 



Cardiocarpon obliquum Dn. 



The identification in the Southern Anthracite lield of this species, 

 hitherto known only from the so-called middle Devonian at St. John, 

 New Brunswick,^ rests upon the entire agreement of the American 

 examples with specimens from the type locality' of the species. This 

 fruit, which appears to me to be unquestionably distinct from 

 C. acutum L. and H.. is especially common at the drift in the upper 

 Lj'kens coal at Kohlers Gap, in Bear Mountain. It is also found in 

 the roof of Lykens coal No. 2 at the North Brookside slope, and in 

 the rock dump from the Upper Lykens coals at the New Lincoln 

 mine. 



Cardiocarpon cuyahog^ nom. nov. 



This name is here proposed for the fruits which were described by 

 Newberry^ as Cardiocarjxni orl)iculan\ the latter name having been 

 employed in the preceding year bj' Ettingshausen^ for a similar fruit. 

 The species occurs in the roof of Lykens coal No. 2 at North Brook- 

 side, at the lower Eureka tunnel, and at the New Lincoln mine. It 

 has also been found in the rock dump from the upper L3"kens coals 

 at the Lincoln mine. 



Trigonocarpum ampull^forme Lx. 



PI. CXCI, Fig. 8. 



Examples of this species from the anthracite regions appear to 

 agree in all respects with the types described b}^ Lesquereux* from 

 the Sewanee zone in Tennessee and Arkansas. Throughout the 

 greater portion of the Appalachian region this type of fruit is more 

 common in and slightly characteristic of the Sewanee zone. I have 

 not yet seen the species in the Lower Coal Measures. 



Trigonocarpum Helen^e sp. nov. 



The species of fruit which will eventually be described under this 

 name includes a portion of the types described by Lesquereux' from 

 the Pottsville formation in Alabama as Rhahdocarpos clavatusf Gein. 

 Trlgonocarjyuni HelencE is distinguished from Trigonocarjmm amj)id- 

 la^'on/ie var. spectabile by the generally narrower nuclei, the very 

 much narrower and less prominent ribs, and the proportionately 

 thicker envelopes with their relatively much broader, shorter, micro- 



1 Dawson, Quart. Jour. Geol. Soc. London, Vol. XVIII, 1862. p. 324, pi. xiii, fig. 25; Fossil Plants 

 of the Devonian and Upper Silurian Formations of Canada, 1S71, p. 61, pi. xix, figs. 225-226. 



-Annals Sci., Cleveland, Vol. I, 1853, p. 153; Kept. Geol. Surv. Ohio, Vol. I, Ft. II, 1873, p. 374, pi. 

 xliii, fig. 10. 



^Steinkohlenfl. v. Stradonitz, 18.52, p. 16, pi. vi, fig. 4. 



K'oal Flora, Vol. Ill, p. 823, pi. cix, figs. 18-21. Nos. 16536-165.38, Lacoe Coll., U. S. National Museum, 



6 Coal Flora, Atlas, p. 18, pi. Ixxxv, fig. 20 (not fig. 14); text. Vol. II, 1880, p. 581 (part). 



