586 CRYPTOGAMIA FIL1CES 



&. O. cinxamomea, L. Sterile frond pinnate, with the pinna; elonga- 

 ted, pinnutifid ; fertile frond bipinnate, with the pinna; contracted, sub- 

 opposite, lanuginous; stipe lanuginous. Beck, Bot. p. 457. 



C 1 n N A MOX-COLO REU OsMU N DA. 



Sterile and fertile fronds distinct, growing together in bundles ; the sterile ones 

 most numerous, 1 to 2 feet or more in length, and 5 to 10 or 12 inches wide, lance* 

 oblong in their outline, pinnate ; pinna or divisions 3 to inches long, and half an 

 inch to near an inch wide, linear-lanceolate in their outline, distinct, sessile, 

 mostly alternate, deeply pinnatifid, slightly pubescent, green, the segments oblong, 

 obtuse, or sometimes acute, entire ; common ruchis channelled above, pubescent ; 

 slip* 9 to 15 or IS inches long, clothed with a loose (locculent reddish-tawny to- 

 mentum ; fertile fronds few, $ to 15 or 18 inches long, and about an inch wide, bi- 

 pinnate ; pinna: all fertile; an inch to an inch and half long, ovate-lanceolate, 

 sessile, mostly opposite, erect, lanuginous, the lower ones distant; pinnules 

 crowded, covered with clusters of minute ferruginous capsules,— forming dense 

 compound glomerate racemes; stipe 1 to 2 feet long, rather stout, and, with the 

 common rachis, clothed with a long loose membranaceous reddish tomentum. 



Hob. Moist low grounds ; along Brandy wine, &c. frequent. Fi . July— Aug. 



Obs. One other species is enumerated in the U. States. 



Sect. 5. Capsules single, roundish, coriaceous, opaque, -without 

 ring or cellular reticulation, half 2-valved. Vernation straight. 

 OruiooLossE.fi, Lindl. 



470. OPHIOGLOSSUM. L. jVutt. Gen. 811. 

 [Greek, Ophis, a serpent, and Glossa, a tongue ; from the form of the spike] 



Capsules Toundish, smooth, 1-celled, 2-valved, opening transversely, 

 connate at base, forming a compact distichous spike. Indtmum none. 



1. O. vuloatux, L. Frond simple, oblong-ovate, obtuse, closely 

 reticulate; spike cauline. Beck, Bot. p. 458. Icon, Bart. >im. 2. 

 tab. 55./. 2. 

 Commox Ophioglossum. Vulffo — Adder's tongue. 



Root a fascicle of coarse fleshy fibres. Frond solitary, an inch and half to 3 

 inches long, and I to 2 inches wide, oblong-ovate, obtuse, ontire, smooth, light 

 green, without midrib, reliculately veined, sessile, and somewhat amplcxicaul, 

 rather below the middle of an erect smooth succulent scape-like stipe 6 to 12 inches 

 high, with a short sheath at the root, and terminating at summit in a compressed 

 lance-linear 2-ranked qiike &n inch to an inch and half in length. Capsules at 

 first connate, and partially imbedded in the rachis, oj>ening horizontally, finally 

 distinct, pale lawny. 



J /ab. Motet low grounds ; woods, and thickets: frequent, Fr. June. 

 Obs. One other species is enumerated in the U. States. 



471. BOTRYCHIUM. Swartz. Nutt. Gen. 812. 

 [Greek, Botrys, a bunch of grapes; in allusion to the fructification.] 



Capsules subglobose, 1-celled, 2-valved, coriaceous, smooth, distinct, 

 fissile along the margins of a compound pinnated rachis, opening trans- 

 versely. Indusium none. 



