W. H. PEARSON: HEPATICA, 33 
From F. utriculata St. in having very small lobule, underleaves not 
broadly reniform (twice as long), bracts laciniate, not entire. 
Hab. No locality. 1730. 
FRULLANIA (Diastaloba) Microscopica Pearson, sp. nov. (Pl. 8. 
figs. 20-34.) 
Monoica, minuta, pallide rubello-brunnea, supra muscos et hepaticas 
repens. Caulis prostratus parce radieulosus irregulariter ramosus. Folia 
horizontaliter oblique inserta patula imbricata alterna semi-ovata vel ovata 
vel faleato-ovata, margine denticulato ciliato vel fimbriato, margine antico 
(superiore) eurvato ampliato caulem transeunte, postico inferiore recto vel 
curvulo, apice obtuso vel acuto vel apiculato; lobus seepe hyalinus ; lobulus 
Fusco-brunneus a caule dissitus obliquus comparate maximus lobo æquilongus 
clavatus; stylus comparate magnus triangularis apice obtuso vel acuto ; 
cellule minutissimæ quadratz vel oblongo-quadratæ, trigonis nullis ; cuticula 
tenuiter papillosa vel levis. Folia parva cauli æquilata oblonga, usque ad 
medium et ultra bifida; segmentis subulatis, sinu angusto. 
Inflorescentia feminea sessilis vel e ramo brevi orta ; bractearum lobus 
lanceolatus acuminatus minute crenulatus; lobulus quam lobus fere 4 minor 
lineari-lanceolatus acuminatus; bracteola lineari-lanceolata, usque ad 4 
bifida, segmentis acuminatis, sinu angusto; perianthium pyriforme obovatum 
triquetrum, postice obtuse et late carinatum, antice planum, carinis levibus. 
Androecia intercalaria ; bracteæ perigoniales in paria 4-5 dispositæ arcte 
imbricatæ ; lobus ovalis acutus vel apiculatus, lobulo consimilis sed minor. 
Dimensions. Stems 1 inch long, diam. ‘05 mm.; with leaves *4 mm. wide ; 
leaves, lobe +3 mm. x 2 mm., ‘25 mm. x :2 mm, ‘25 mm. x ‘15 mm. ; lobule 
‘15 mm. x ‘075 mm. ; stylus ‘075 mm. X ‘05 mm. ; underleaves 1 mm. X 
'05 mm.; cells ‘OL mm., ‘Ol mm. X ‘0125 mm.; bract, lobe *4 mm. x 
175 mm., lobule :3 mm. x ‘075 mm. ; perianth +55 x ‘325 mm. ; perigonial 
braet, lobe :225 mm. x ‘15 mm., lobule *2 mm. x:1 mm. 
Obs. This is by far the smallest Frullania I have ever seen; and no species 
to my knowledge approaches it; the lobes of the leaves are often hyaline, 
while the lobules, which are relatively very large, are dark brown. 
The plant is in perfect condition, with 9 and d abundant; so it is of its 
normal size and not a branch of a larger species. 
Stephani notes after his description of 7. perversa from the Philippine Is. 
(Sp. Hep. vol. iv. p. 639, 1911):—“ This plant is one of the smallest known 
Hepaties, only Microlejeunea comes near it,” 
F. microscopica differs from it in many particulars. 
Hab. Mont Mou. On trees in high forest, 3500 ft. 616. 
ACROLEJEUNEA CoMPTONII Pearson, sp. nov. 
Dioica (?), mediocris fusco-rubello-brunnea corticola. Caulis irregulariter 
dichotomus firmus. Folia arcte imbricata patenti-divergentia (70?) sub- 
LINN. JOURN.- -BOTANY, VOL. XLVI. D 
