253 
- 
Linum Sansabeanum Buckl. Proc. Acad. Phila. 1861, 450 
(1861), according to Gray. 
Sparingly pubescent, 1-2 dm. high, stems slender, wiry, much 
branched, decumbent or erect, the branches ascending. Leaves 
narrowly linear, 6-12 mm. Icng, 0.5 mm. wide, scattered, the upper 
minute ; flowers solitary in the axils of the subulate upper leaves, 
secund, slender-pedicelled, the pedicels deflexed and 2-4 mm. long 
in fr uit; calyx strigose-pubescent, the outer sepals about as long 
as the inner; capsule depressed-globose, 2 mm. in diameter. 
Texas (Drummond, No. 19; Wright; Lindheimer, No. 16; 
Berlandier, Nos. 631, 1028, 2041, 2458; E. Hall, No. 31; Curtiss’ 
N. A. P lants, No. 232; Sabine River, Leavenworth). 
Fossil Salvinias, including Description of a new Species. 
By ARTHUR HOLLICK. 
(PLATE 205.) 
: The genus Salvinia is represented in the flora of to-day by 
‘thirteen recognized species, which are, with the single exception 
of S. natans (L.) All., confined to tropical regions. This latter 
“pecies is well known in Europe and Asia, and has been found or 
‘sported from four localities in North America, viz.: Western 
New York and Missouri (fide Gray’s' Manual, 6th Ed., 7o1 
(1890]); Minnesota (Conway MacMillan? Bull. Torr. Bot. Club, 
nid '3 [1891]); Southeastern New York (Thos. Craig, Proc. Nat. 
Sci. Assn, S. 1; Oct 14. 1893). In all these localities, however, 
the indications are that’ the plant was introduced, and that it is 
not native on this continent. ; 
In the fossil state the genus has been well identified from re- 
cent Seological horizons—upper cretaceous and tertiary—in Eu- 
rope and America, and thirteen species have been described.* 
*1. Salvinia reticulata (Ettingsh. in part), Heer, Fl. Tert. Helvetiz, 3: (1859), 
- 145, f.16. (Dalbergia. reticulata Ettingsh. Beitr. z. Kenntniss d. Foss. Fi. 
‘Okay, Sitzb. d. K. Akad. Wiss. Wien, Math.-Nat. Cl. 11: (1853), 813, 24 4, f 5)- 
