208 HoLiick: STATUS OF OPHIOGLOSSUM ALLENI L. 
In 1894 I had occasion to examine the figures and descriptions 
of this and other fossil species described under, or referred to, 
the genus Salvinia, and in a eR on the subject I referred 
Lesquereux’ species to the genus Tmesipteris* and incidentally 
compared it with Salvinia seach (Ettingshausen) Heer, 
above mentioned, which Heer had suggested was, apparently, 
specifically identical with a fragmentary leaf or pod originally 
described by Ettingshausen under the genus Dalbergia;} but 
the resemblance to a pod did not impress me at the time. 
In 1913, Professor T. D. A. Cockerell,t in a discussion of the 
fauna and flora of the shales in which the species was originally 
discovered and from which the specimens subsequently collected 
were obtained, remarked: 
The so-called Tmesipteris alleni (Lx.) Hollick, although common, can 
not be referred to any genus known to those who have examined it. It has 
nothing whatever to do with Tmesipteris, nor does it belong to Salvinia or 
Ophtoglossum, as placed by Lesquereux. It may be known for the present 
as Carpolithes alleni (Lx.). 
Thus it was given its fourth generic appellation—one that 
suggested similarity in ng hea to a carpel or capsule or 
pod-like organism of some 
In 1919 Florin,§ in a paper on fossil Salvinias, expressed an 
opinion similar to that expressed by Cockerell—to the effect 
that the taxonomic status of Lesquereux’ species was too un- 
certain to warrant its reference to any well-defined genus—and 
relegated it to the comprehensive fossil genus Phyllites, under the 
name P. alleni (Lesquereux) Florin (loc. cit. p. 254). The fifth 
generic name was thus applied in connection with the species—a 
name, apparently, meant to indicate that the author intended to 
suggest that it probably represented a foliar organ. 
* Fossil Salvinias, iackudling description of a new species. Bull. Torrey 
Club 21: 253-257. - 1894. 
} Dalbergia reticulata Ettingshausen, Beitra ag zur Kenntniss der Fossilen 
Flora von Tokay. Sitzb. K. Akad. Wiss. [Wien.] — ~Naturwiss. Cl. 114: 
813. pl. 4,f.5. 1853. Reproduced on PLATE to. Bs 
tThe Fauna of the Florissant (Colorado) ail Am. Jour. Sci. 36: 
498-500. 1913. 
§ Eine Uebersicht der Fossilen Salvinia-Arten, mit besonderer Beriick- 
sichtigung eines Fundes von Salvinia Formosa ——o in Tertiir Japans. Bull. 
Geol, Inst. Upsala 16: 249-260. P1..it. 16 
