1962] 



LEAFY HEI'ATICAE OF LATIN AMERICA — PART I 



87 



ECUADOR: Quito, Jameson 240 (BM); Amies Quiteuses, Pichhicha, Spruce, type of 

 I. ripensis (isotypes FH, G, NY), Jameson 1850, 1856 (as J. complicata, 9) (G). 

 PERU: Cuzco: Vargas 7302 (F). 



BOLIVIA: Unduavi, Brooke 6723, 6875 (9), 6949 ( <5 ) (BM) ; s.L, Herzog, type of 



1. heterophylla (G). 



PATAGONIA-TIERRA DEL FUEGO: Volcan Villarrica, Hosseus, type of I. mutabilis 

 (G); s.l., Nordenskjold 905 p.p., type of I. nordenskjoldii (isotype, FH) ; Fuegia, Halle, 

 type of /. halleana (G) ; Patagonia occid., Skottsberg (as /. halleana) (G) ; Basket I.: Des- 

 olation Bay, Spegazzini, type of I. anceps (G). 



The species also occurs in the Falkland Islands, collected by Skottsberg (type of I. 

 lanciloba) (G) and Tristan da Cunha (Arnell, 1958). The species was first collected in 

 Tasmania (type K, isotype G) and also occurs in New Zealand. 



There are additional reports of the species from American localities in the literature: 

 Costa Rica (Herzog, 1938a), Argentina (Kuhnemann, 1949); Patagonia — Tierra del Fuego 

 (Arnell, 1955; Gola, 1923; Herzog, 1954; Massalongo, 1927; K. Miiller, 1955; Stephani, 1900 

 a, b; 1901a; 1911). 



2. Triandrophyllum trifidum ((iottsche) Fulford & Hatcher, Bryologist 64: 



348. 1961 [1962]. 



? Sendtnera trifida Gottsche, Ann. Sci. Nat. V. 1: 142. 1864. 

 Herberta dura Stephani, Hedwigia 34: 44. 1895. 



Mastigophora antarctica Stephani, Bihang Sv. Vet.-akad. Handl. III. 26°: 56. 1900. 

 Isotachis appendiculata Stephani, Spec. Hep. 3: 659. 1909. 



Isotachis trifida (Gottsche) Stephani, Spec. Hep. 3: 670. 1909 [incorrectly cited as 

 (Gottsche) Spruce]. Non I. trifida Stephani, Spec. Hep. 6: 356. 1922 [I. sprucei 

 Beauverd, in Stephani, Spec. Hep. 6: 572. 1924]. 



Schisma dura (Stephani) Stephani, Spec. Hep. 4: 21. 1909. 



Mastigophora trifida (Gottsche) Stephani, Spec. Hep. 4: 37. 1909. 



Lepicolea boliviensis Stephani, Bibliot. Bot. 87: 228. /. 171 a-b. 1916. 



Triandrophyllum durum (Stephani) Fulford & Hatcher, Bryologist 61: 279. /. 21, 22. 

 1958 [1959]. 



Triandrophyllum antarcticum Fulford & Hatcher, Bryologist 61: 281. 1958 [1959], ex- 

 cluding specimens and synonyms. 



Plants of medium to large size, brown, sometimes reddish at the tips, erect 

 or ascending, in tufts or mats; stems 4-8 cm long, with leaves to 3 mm wide, 

 rarely branched, the branches ventral-intercalary, leafy or flagelliform ; stem 

 in transverse section with a unistratose cortical layer of slightly smaller, thick- 

 walled cells. Rhizoids not seen. Leaves distant to approximate, widely spread- 

 ing, asymmetric, ovate to ovate-truncate, 1-2 mm long, to 1.0 mm wide, the 

 margins spinose-dentate, with few to many teeth (more on the ventral margin), 

 bifid or trifid to one-half of their length ; segments lanceolate, acute or blunt ; 

 leaf-cells near the base of the segments 30^0 X 24-28 p., the walls uniformly 

 thickened, the trigones small to indistinct, the cuticle verruculose to sometimes 

 papillose. Underleaves scarcely smaller than the leaves, bifid or trifid, ap- 

 pressed to widely spreading, the margins spinose-dentate below. Female inflor- 

 escence terminal on the stem or branch, without or with one or two subfloral, 

 leafy or microphyllous innovations, the bracts and bracteoles like the leaves, 

 slightly larger, with more teeth. Perianth with folds or keels above, divided to 

 one-fourth of its length into six to nine segments with ciliate margins. Male 

 inflorescence and sporophyte not seen. Fig. 2, a-f. 



Habitat : On soil and over rocks in shaded areas along banks, and in open 

 fields. 



COLOMBIA: Fusagasuga, Lindig 1722 (isotype, G) ; Andes Bogota, Weir (as Sendtne- 

 ra jamesii) (NY). 



BOLIVIA: s.l., Herzog (as I. trifida), (G) ; Tablas, Herzog 2853, type of Lepicolea 

 boliviensis (G). 



