430 ANOPHYTES 



586. FEcATEI/L,A, Raddi. Great Liverwort. 



[Believed to be a personal name.] 



Fertile receptacle conical-mitriform, membranaceous, peduncled. 

 Involucres 5 to S, tubular, 1 -flowered, suspended from the apex of 

 the peduncle, and coherent with the interior surface of the recep- 

 tacle, opening by a longitudinal slit. Perianth none. Catyptra 

 persistent, bell-shaped, opening at the apex by 2 to 4 lobes. 

 Capsule globular, dehiscing by 5 to 8 revolute segments, deciduous 

 with its short pedicel. Inflorescence dioicous. Antheridia immersed 

 in sessile roundish disks near the apex of the forking frond. Mid- 

 rib distinct, narrow. 



1. F. coiiica, Corda. [Conic'] : Fronds 3 to 6 inches long, 5 

 to 9 lines wide. Springy places. The largest of our Hepaticae ; 

 seldom in fruit. 



587. MARCHAIV'TIA, L. Brook Liverwort. 



[Dedicated to Nicholas Marchant, a French Botanist.] 



Fertile receptacle radiated. Involucres alternate with the rays, 2- 

 valved, lacerate, inclosing 3 to 6 4- or 5-cleft perianths. Calyptra 

 opening at the apex, persistent. Capsule globular, pendulous, ex- 

 sertly pedicellate, dehiscing at apex by several revolute segments. 

 Dioicous. Sterile receptacle pedicellate, peltate, lobed or radiate, 

 papillose on the upper surface by the apices of the immersed 

 antheridia. Lentil-shaped buds (gemmae) in cup-like receptacles on 

 the back of the frond. Frond expanded, forking, with a broad dif- 

 fused midrib. 



1. M. polymorplia, L. [Many-form]-. Fertile receptacle 

 deeply divided in a star-like manner, the rays 8 or 10, terete ; 

 peduncle an inch to an inch and half long. Moist, shaded places. 



SUBORDER III. ANTHOCERO V TEAE. 



Terrestrial annuals; mostly frondose, with the fruit protruded from the upper 

 surface of the frond; perianth none; capsule pod-like, 1- or 2-valved, \vith a free 

 central columetta ; elaters imperfect, or wanting. 



588. AlVTHO'CEROS, Mich. 



[Gr. Anthos, a flower, & keras, horn ; from the shape of the involucre and capsule.] 

 Involucre tubular. Calyptra conical, with a nearly sessile stigma. 

 Capsule narrowly linear, silique-like, 2-valved, pedunculate. 

 Elaters flexuose, the spiral fibre imperfect, or wanting. Spores 

 minutely muricate. Monoicous. Antheridia sessile in a cup-shaped 

 involucre, on the back of the frond. Vegetation frondose, orbicular, 

 radiate, with dark-green grains (gemmae) scattered within its sub- 

 stance. 



1. A. Ia&viS ? L. [Smooth'] : Surface of the frond smooth ; 

 mouth broadly scarious. Wet, shaded places. The curious erect 

 linear-subulate half-bifid fructification 1 to 2 inches high. 



589. tfOTOTHYXAS, Sulliv. 



[Or. notos, back, and thylas, bag ; in reference to the involucre.] 

 Involucre a protrusion of a portion of the upper stratum of the frond, 

 opening irregularly at apex. Calyptra none ? Capsule included in 



