1S4 



MEMOIRS OK THE NEW YORK BOTANICAL GARDEN 



[VOL. 11 



Lepidozia commutata Stephani, Hedwigia 27: 293. 1888; Icon. Hep., Lejridozia 



No. 26a, b. 



Lepidozia microphylla auctt. p.p. [American plants.] Non L. microphylla Lindenberg 

 in G. L. & N. Syn. Hep. 202. 1845. 



Plants very slender, in pale green to light brown tangled mats, or among 

 other bryophytes; stems filiform, to 15 cm long, pinnate or bipinnate, the lateral 

 branches very long, 1-4 mm apart, often becoming flagelliform, the ventral 

 branches flagelliform, rarely leafy with a flagelliform tip. Line of leaf insertion 

 transverse or nearly so. Stem-leaves distant, appressed or spreading, more or 

 less quadrate to cuneate on robust plants, the margins without teeth, 0.2-0.3 mm 

 or more long, 0.2 mm broad at the base, quadrifid to one-half of their length; 

 segments divergent, triangular, four to six cells wide below, ending in a row of 

 one to four or sometimes to six cells; leaf-cells quadrate, thick-walled, averaging 

 16-20 ft at the base of the segments, the cell lumina rounded, the cuticle smooth. 

 Branch-leaves similar, but with longer segment tips. Underleaves distant, minute, 

 averaging 0.15 mm long, 0.2 mm wide, quadrifid to the middle, the segments 

 uniseriate or nearly so. Male branches frequent, from the stem or sometimes 

 from near the tip of a flagelliform branch, the bracts and bracteoles in five or 

 six series, the bracts larger than the leaves, imbricate, ovate, concave, bifid to 

 one-third their length, the bracteoles smaller; antheridia in pairs, large, globose, 

 short-stalked. Female branches frequent, the bracts and bracteoles in three to 

 five series, the bracts of the inner series broadly ovate, quadrifid to the middle 

 and with a few short teeth on the upper margins of the lamina. Perianths to 

 6 cm long, one-layered above, 2- or 3-layered in the middle and 3- or 4-layered 

 at the base, the mouth contracted, undivided-undulate. Sporophyte not seen. 

 PI. 40. Fig. 1, a-c. 



Habitat: On trunks and branches of trees and over soil. 



CUBA: Oriente: Sierra Maestra, Loma Joaquin, Ekman 14623 (S-PA) ; Sierra Maestra. 

 Pico Turquino, 1700-1750 m, Ekman 5269, 5270 (S-PA). 



JAMAICA: Greenwich Woodland, 4000 ft, Harris (ABS-H) ; w of Mossman's Peak, 

 1650-1750 m, Maxon 10204 (US) ; Newhaven Gap, 5500 ft, Underwood 1031 (NY) ; s.l., Hb. 

 Mitten (NY). 



HAITI: Croix-des-Bonquets, 2100 m, Ekman 7727 (S-PA); Mt. Cabaio, 1600 m, 

 Ekman 8002 (S-PA). 



PUERTO RICO: El Yunque, Evans 18, 88 (Y), Pagan 1975 (NY); near El Yunque 

 Tower, 3050 ft, Pagan 551 (P) ; Luquillo Mts.. E. G. Britton 7718 (NY), Br. Hioran (NY), 

 Br. Hioran 396 (Y), Steere 4271, 4274, 4275, 4812 p.p., 4389 p.p., 44%9 p.p. (Hb. Fulford) ; 

 Sierra de Naguabo, Johnson & Stevenson 1554 P-V-, 1555 p.p. (Y), Shafer 3066, 3725b (Y) ; 

 s.l., Sintenis 25, the type of L. commutata (G). 



ST. KITTS: s.l., Breutel, Hb. Mitten (type NY, isotype BM) ; Mt. Misery, Britton & 

 Cowell 612, 569 (NY), without collector (BR) ; s.l., without collector (G). 



Plate 40 



Fig. 1. Lepidozia patens, la. Stem, ventral view, X 60. lb. Robust stem, dorsal view, 

 X 33. 1 c. Stem leaf, X 40. 



Fig. 2. L. subdichotoma. 2 a. Stem, ventral view, X 57. 2 b. Stem leaf, X 57. 2 c. Growth 

 pattern of a plant. 



Fio. 3. L. incurvata. 3 a. Stem, ventral view, X 35. 3 b. Stem leaf, X 57. 



Fig. 4. L. porloricensis. 4 a. Stem, dorsal view, X 80. 4 b. Stem, ventral view. X 80. 4 c. Stem 

 leaf, X 80. 4 d. Leaf segment with cells, X 350. 



Fig. 5. L. reptans. 5 a. Stem, ventral view, X45; F, branch of the Frullania type. 5 b. Stem 

 loaf, X 57. 5 c. Leaf cell, X 350. 



Fig. 6. L. aequiloba. 6 a. Stem, ventral view, X 45. 6 b. Stem leaf, X 57. 6 c. Stem 

 underleaf. X 57. 



Drawings after J. Taylor, 1960. 



