118 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL. 11 



Mastigobryum cuneifolium Gottsche in Duss, Fl. Crypt. Antilles Fr. Hep. 23. 1903. 



(nomen nudum.) 

 Mastigobryum parvum Stephani, Spec. Hep. 3: 438. 1908. 

 Bazzonia trichodes Spruce ms. Hepat. Sprue. 

 Bazzania bidens var. Spruce ms. Hepat. Sprue. 

 Mastigobryum trichoideum Stephani, Spec. Hep. 3: 532. 1909. 



Plants scattered or in depressed mats, slender forms yellow-brown to red- 

 brown, larger plants yellow-green to olive-green ; stems slender to filifiorm, 

 prostrate to ascending near the tips, to 5 cm long, with leaves 1.5-2.0 mm wide, 

 the leaves often becoming scale-like; lateral branches frequent, 3 mm-10 mm 

 apart, diverging at a very wide angle ; flagelliform branches numerous, very 

 long, often branched. Leaves distant to subimbricate, ascendent, becoming 

 convex on drying, in the normal condition asymmetrically ovate, averaging 

 0.65-0.85 mm long and 0.4 mm wide at the base, narrowing to the apex, often 

 much smaller and scale-like, becoming nearly symmetric and to 0.5 mm or less 

 long and 0.3 mm wide at the base ; the apex irregularly 2-toothed or acute 

 in the smaller leaves, the teeth two or three cells long, the acroscopic tooth 

 often the longer, the sinus broad, lunulate to acute; leaf-cells thin-walled, the 

 trigones small, conspicuous, often confluent, the lumina angular-rounded, the 

 cuticle smooth to faintly verruculose; cells of the apical portion 16-20 p. in 

 diameter, those of the basal portion mostly 40 X 15 p., forming a narrow but 

 usually distinct vitta. Underleaves small, distant, as broad as the stem, quad- 

 rate to quadrate-orbicular, mostly 0.2-0.32 mm long, much smaller in reduced 

 forms, the apex straight or shortly 1-4-toothed or -lobed. Male branches fre- 

 quent, usually several on a stem, the bracts ovate, bifid, emarginate to crenulate, 

 the bracteoles similar, smaller. Female branches occasional, the bracts and 

 bracteoles of the innermost series broadly ovate, divided to one-third of their 

 length into three dentate to ciliate laciniae. Perianth-mouth laciniate. Fig. 6, a-f. 



Habitat : Over logs, rocks and soil or tree bases in forests. 

 CUBA: Oriente, Sierra Maestra, Morton 9443, 9529 (US). 



JAMAICA: Blue Mountain Peak, Johnson 39.1 (F) ; Caledonia Peak, M. Farr 1009 

 (IJ); Cinchona, Cummings 11 (NY); Fairy Glade, M. Farr 769, 779, 783, 784, 787 (IJ) ; 

 Green Hill Wood, 4000 ft, Harris 12 (NY) ; Hardwar Gap, Baxter 9 p.p., 11 p.p. (KANU) ; 

 Hardwar Gap to Waterfalls, M. Farr 1213, (IJ) ; near John Crow Peak, M. Farr 722 p.p. 

 930 (IJ) ; base of John Crow Peak, 5000-6000 ft, Underwood 2361 (YU, NY) ; John Crow 

 Peak, 5500-5800 ft, Underwood 657, 659, 823, 2360 (YU, NY), Morce's Gap, 5000 ft, Under- 

 wood 530, 621, 632 (YU, NY), Mt. Horeb, Welch 17811 p.p., 17867 (Hb. Welch) ; New Haven 

 Gap, Underwood 911 (as B. cuneistipula) (YU, NY) ; New Haven Gap, Johnson 19 (YU, F) ; 

 Portland Gap, 1650 m, Maxon # Killip 1195 (FH, YU, NY) ; near Portland Gap, Bengry 

 256 p.p. (IJ) ; between Sir John's and High Peak, Lewis 70 (IJ) ; s.l., Borgensen (as 

 M. cuneistipulum) (G) ; s.l., Hansen (G) ; s.l., Orcutt 3170, 5107, 5223 (BM) ; s.l., Sherring 8 

 (BM). 



Fig. 5. Bazsanim roraimensis. 5 a. Stem, ventral view, X 15- 5 b- Robust stem (B. 

 platystipula) , X 15. 5 c, d. Cells from the apical portion of leaves, X 400. 5 e. Segment 

 from an innermost female bract, X 310. 5 f. Portion of the perianth-mouth, X 150. 



Fig. 6. B. gracilis. 6 a. Portion of stem, ventral view, X 30. 6 b. Filiform stem, X 30. 



6 c. Tooth of a leaf, X 260. 6 d. Female bract of the innermost series (immature). 6 e. 

 Portion of the perianth-mouth. 6 f . Cells of the perianth mouth, X 180. 



Fig. 7. B. aflinis. 7 a. Stem, ventral view, X 30. 7 b. Leaf. 7 c. Apices of leaves. 



7 d. Leaf -cell, X 350. 7 e. Underleaves, C, chlorophyllose area, H, hyaline part. 



Fig. 8. B. pallide-virens. 8 a. Stem, ventral view, X 8. 8 b. Leaf-cell, X 400. 8 c. 

 Underleaves, X30; C, chlorophyllose area, H, hyaline part. 8 d. Female bract of an inter- 

 mediate series, X 40. 



