28 



The second genus in this small but natural family of 4 species is the 

 monotypic Calomnium from New Zealand, which, although gymnostomous, 

 and with a dimidiate calyptra, agrees so closely in habit and structure 

 of leaf with our Georgia pellucida, that its place in this family ought to be 

 at once apparent, yet Lindberg appears to be the only author who has 

 noticed its true affinity; see his remarks in Act. Soc. scient. fenn. X, 

 p. 240 (1872). 



GEORGIA. EHRHART. 



(Hannov. Mag. 1780, p. 932). 



Plants caespitose, tall, erect, or very small with long radical 

 linear leaves or flagelliform leafy branches. Lower leaves small, 

 upper much larger, ovato-lanceolate, areolation hexagono-rotundate, 

 at base laxer and linear-rectangular. Calyptra mitriform, plicate, 

 sulcate, covering greater part of capsule. Capsule cylindraceous or 

 oval, leptodermous, on a long pedicel ; operculum conical ; peristome 

 arising below the mouth, teeth 4, lanceolate in outline, striate at 

 back, rufous. Spores smooth, green or yellow. Growing on the 

 ground, on rotten wood, or on sandstone rocks. 



Sect. i. TETRAPHIS. HEDW. 



Plants taller, slender, caespitose, the leaves increasing in length 

 upwards ; primordial frondiform leaves, present only in the early state 

 of the plant, then vanishing. Capsule cylindric. 



i. GEORGIA PELLUCIDA (L.) Rabenh. 



AutBaroicous ; cauline leaves in 3 or 5 rows, ovato-lanceolate, acute, 

 nerve vanishing below apex, capsule cylindric, on a straight, smooth 

 seta. (T. IV A). 



SYN. Mnium minus non ramosum angustioribus et pellucidis foliis DILL, in RAY Syn. st. brit. 

 3 ed. 78 (1724). 



Mnium Serpylli foliis tenuibus pellucidis DILL. Hist. Muse. 232. n. 2, t. 31, f. 2, excl. A 

 (1741) ; et Herbar. 



Mnium pellucidum L. Sp. pi. ii, nog, n. i (1753) ; et Fl. suec. 968. HUDS. Fl. angl. 402 



(1762). HALL. Hist. st. Helv. iii, 56, t. 45, f. 8 (1768). WEISS Crypt. Gott. 162 (1770). 



NECK. Meth. muse. 233 (1771). WITH. Bot. arr. Br. Veg. ii, 663, i (1776). LIGHTF. 



Fl. Scot. 11, 705 (1777). L. FIL. Meth. muse. 363 (1781). RELH. Fl. cant. 398 (1785). 



SCHMID. Ic. pi. rar. 2 ed. i, 13, t. 3 (1793). HULL. Br. Fl. 249 (1799). 

 Bryum diaphanum WEB. Spic. Fl. gott. 121 (1778). VILL. PI. Dauph. iii, 873 (1789). 



Georgia Mnemosynum EHRH. in Hann. Mag. 1780, 932 ; et Beitr. i, 188 (1787). C. MUELL. 

 Syn. muse, i, 182 (1849). 



Tetraphis pellucida HEDW. Fund. muse, ii, 88, t. vii, f. 32 (1782) ; Sp. muse. 45, t. 7, 

 f. i a f (1801). ROTH. Fl. Germ. tent, i, 454, et iii, P. I, 132 (1788). BRID. muse, 

 rec. n P. I, 48 (1792) ; Sp. muse. I, 83 (1806) ; Mant. muse. 26 (1819) ; Bry. univ. i, 134 

 (1826). SIBTH. Fl. Oxon. 275 (1794). ROHL. Deutsch. Fl. 41 (1794) ; Moosg. Deuts. 

 87 (1800) ; Ann. Wett. Ges. ii, 79. HOFFM. Deutsch. Fl. ii, 30 (1796). SWARTZ Muse. 



