1966] 



LEAFY HEPATICAE OF LATIN AMERICA — PART II 



177 



PATAGONIA: Hay Harbor, Cunningham 147 (type K, isotype NY); Halt Bay, 

 Cunningham 96 (NY). 



Other reports from Patagonia include those cited by Herzog (1954, 1960), Kiihnemann 

 (1949), and Stephani (1911). 



References 



Evans, A. W. A revision of the genus Acromastigum. Ann. Bryol. Suppl. 3: i-viii, 1-178. 

 f.1-40. 1934. 



Grolle, R. On Acromastigum in South America, with comments on the Patagonian Bazzaniae. 



Bryologist 64: 16-29. f.1-4. 1961. 

 Lindenberg, J. B. G. & Gottsche, C. M. Species Hepaticarum, Mastigobryum. i-xii, 1-118. 



pi. 1-21. 1851. 



Hodgson, E. Amy. New Zealand Hepaticae (Liverworts)-VIII. A review of the New 

 Zealand species of the genera Bazzania and Acromastigum. Trans. Roy. Soc. New Zealand 

 82: 7-24. fig. 1-16. 1954. 



Paracromastigum Fulford & J. Taylor, Brittonia 13: 336. 1961. 

 Lepidozia auctt. p.p. 



Plants small, pale green, the tips sometimes reddish-brown; stems slender, 

 erect, tending to be radial, irregularly branched, the lateral branches leafy, of 

 the Frullania type with the ovate half-leaf on the dorsal side of the stem, the ven- 

 tral branches leafy, of the Acromastigum type, with the ovate half-underleaf 

 adjacent to the branch, or axillary-intercalary and flagellif orm ; stem in trans- 

 verse section with a unistratose cortical layer of about 12 (13) cells slightly 

 larger than those of the medulla. Line of leaf insertion transverse. Leaves and 

 underleaves ovate-rectangular to subquadrate, the leaves bifid (rarely trifid) to 

 one-half or one-third of their length, occasionally toothed on one or both sides. 

 Underleaves trifid (sometimes bifid) to one-third of their length. Male and female 

 inflorescences and sporophyte not seen. 



Type species: Lepidozia subsimjilex Stephani. 



Paracromastigum subsimplex (Stephani) Fulford & J. Tayor, Brittonia 13: 

 336./. 52-58. 1961. 



Lepidozia subsimplex Stephani, Sv. Vet.-akad. Handl. 46 9 : 66. /. 24, r-s. 1911. Icon. 

 Hep., Lepidozia No. 143. 



Plants small, pale green, the leaves and underleaves often tinged with 

 reddish-brown, appearing to be denuded, in tufts or among other bryophytes; 

 stems slender, suberect, tending to be radial, to 4 cm or more long, with leaves 

 to 0.3 mm broad, sparingly irregularly branched, the lateral branches long, 

 leafy, the ventral branches long, leafy, of the Acromastigum type or ventral 

 intercalary. Line of leaf insertion transverse. Stem leaves ovate-rectangular to 

 subquadrate, with convex sides, occasionally with a short tooth on one or both 

 margins, bifid (occasionally trifid) to one-half or one-third their length; segments 



perianth above the middle, X 40. 1 h. Segment of the perianth mouth, X 225. 1 j. Transverse 

 section of the sporophyte stalk, X 225. 



Fig. 2. A. laetevirens. 2 a. Leafy stem, ventral view, X 40. 2 b. Leaf, X 40. 2 c. Leaf cell 

 from the base of the segment, X 350. 2 d. Underleaf. X 80. 2 e. Transverse section of the leafy 

 branch, X 350. 



Fig. 3. A. cunninghamii. 3 a. Leafy stem, ventral view, X 50. 3 b. Leaf cell from the base 

 of a segment, X 350. 3 c. Transverse section of the leafy branch, X 225. 

 Figures 1 and 3 after Evans, 1934 ; fig. 2 from the type. 



