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MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL. 11 



quadrifid to one-third their length; the segments broadly triangular from an 

 8- to 10-celled base, the apex ending in a row of two cells; leaf-cells at the base 

 of the segments 18-25 X 18 n, the walls uniformly thickened, the trigones 

 inconspicuous, the cuticle faintly verruculose. Plants dioicous. Male inflorescence 

 on a short ventral sexual branch or becoming intercalary on a longer ventral 

 branch, the bracts and bracteoles in three to ten or more series, the bracts 

 concave, bifid, the bracteoles plane. Female inflorescence (only one) on a short 

 ventral branch, the bracts and bracteoles in 3 series, faintly keeled, long oval in 

 outline, the apices of the bracts of the innermost series undivided or with a 

 few blunt lobes and projecting cells. Perianth long cylindrical, contracted above, 

 the mouth crenulate. Sporophyte not seen. PI. 47. Fig. 4, a-g. 



Habitat: On decaying logs, among Sphagnum and other bryophytes in 

 wet woods. 



PATAGONIA— TIERRA DEL FUEGO: Guaitecas I., Dusen 387 (type G), Dusen, 

 as I. quadriloba f. etiolata (G), Dusen (K) ; Magellan Straits, Schubert, ex Hb Moenkemeyer, 

 N12, the type of /. symmetrica (G) ; Desolation I., Pto Angosta, Dusen (S-PA). 



There are additional reports of the species from Argentina (Kiihnemann, 1949) and 

 Chile (Stephani, 1901a). 



Microlepidozia (Spruce) Jorgensen, Berg. Mus. Schrifter 16: 303. 1934. 



Lepidozia subg. Microlepidozia Spruce, p.p., London Jour. Bot. 14: 165. 1876. 

 Lepidozia subg. //. Microlejndozia Spruce, subdivision 1. Trans. Proc. Bot. Soc. Edinb. 

 15: 359. 1885. 



Telaranea K. Miiller in Rabenhorst's Krypt.-Flora 8: 1133. 1956. Xon Telaranea Spruce. 

 Kurzia v. Marten, Flora 28: 417. 1870; emend. Grolle, p.p., Revue Bryol. Lichenol. 

 32(1-4) : 166. 1963 (1964). 



Plants of small to medium size, pale to dark green or brown ; stems prostrate 

 to ascending, irregularly or regularly pinnate or bipinnate; the lateral branches 

 leafy, often becoming flagelliform in the outer part, those of one side of the stem 

 of the Frullania type with the bifid or subulate half-leaf dorsal, those on the 

 opposite side of the Microlepidozia type, with the bifid or subulate half-leaf 

 ventral; ventral branches intercalary in the axils of the underleaves, long- 

 flagelliform or short, sexual; stems in transverse section with a unistratose 

 layer of 12- (16) cortical cells surrounding the often smaller cells of the medulla. 

 Rhizoids on the scale-leaves of the flagelliform branches. Line of leaf insertion 

 transverse with the leaves erect-spreading or incurved, or oblique with the leaves 

 succubous. Leaves subquadrate to cuneate in outline, quadrifid (or trifid) to 

 one-half or three-fourths, the segments equal or unequal, the base of the lamina 

 eight to twelve rows of cells wide. Underleaves smaller or nearly equal to the 

 leaves, deeply bifid, trifid or quadrifid, the segments unequal (rarely equal). 

 Plants dioicous; male inflorescence on a short ventral sexual branch, catkin-like, 

 rarely intercalary on a long lateral branch or on the stem, the bracts and 

 bracteoles in two to six or more series; antheridia in the axils of the bracts; 

 female inflorescence on a short ventral sexual branch, the bracts and bracteoles 

 similar, different from the leaves, more or less ovate. Perianth long, of one 

 layer of cells, cylindrical below, with three broad keels above, the mouth con- 

 tracted, crenulate to laciniate-ciliate; capsule reddish-brown, the wall of two or 

 three layers of cells, with brown knot-like thickenings along the radial walls of the 

 outer surface, and bands of half-rings across the inner tangential walls of the 

 innermost layer. Seta in transverse section with eight very large cells surround- 

 ing 12-16 smaller cells. 



