308 THE JOURNAL OF BOTANY 
recently distinguished from S. Micheli, aan it may really Henge as 
above mentioned, the commoner of the tw In the meantime a 
Ploaiting. ; also a more detailed search in suitable localities in 
Surrey. The plants are stated to be in fruit from March to the 
end of June. It may be added that Mrs. Wood first found the 
Spherocarpus ten or twelve years ago, when her garden was com- 
paratively new, and she thinks that there were no American shrubs 
near it then, but of this she cannot be sure 
APLOZIA CHSPITICIA. 
AptoziA caspiTiciA (Lindenb.) Dum. Jungermannia cespi- 
ticia Lindenb. Syn. Hep. Eur. 67 (1829). Dzorcous. l 
nder. In small dense patches or less —e gregari -_ — 
Stems 3-45 n 
numerous to apex of s Leaves obliquely inserted, imbricate, 
pial-dapvak ce slightly concave in the fertile plant, rotund 
to subreniform, apex sometimes emarginate, the antical margin 
slightly decurrent; cells at middle of leaf 32-42 » in diam., 
polygonal, the walls very thin, trigones Kg ecg poste row of cells 
quadrate with somewhat thickened walls forming a more or 
less distinct border; cuticle smooth. Unde er leaves absent. Invo- 
shortly tubular, crenulate mouth. Capsule eet cal, reddish- 
purple, pedicel pee Spores 12-16 p, pale red, nearly smooth. 
Elaters bispiral, re -purple ale bracts in several pairs, 
transversely inserted, waa -patent, rather smaller and more con- 
cave than the leaves, the antical margin frequently with a broad 
tooth; antheridia usually single, globose, pedicel very short. 
Gemme roundish-quadrate, more rarely 3-angled, 1-celled, very 
numerous in a large and conspicuous, brownish-green, globular 
mass, closely invested with leaves, at the apex of the stem. 
Hab.—The Wilderness, Isle of Wight, leg. H. H. Knight, 
23 Noy. 1908. 
The leaves on nore tes = on the acne age stems are 
erecto-patent, or sometimes even reflexed, at the apex, and they 
are less A lay than in the fertile plant 
The Isle of Wight specimens belong to the male and gemmi- 
ferous plant which Rees described as var. obtusata in Eur. Leb. i 
20. In this state it cannot be confused with any other round- 
leaved —— the large gemme-balls being igs dae —— 
ally two of these balls occur on one stem. Whe are 
absent the pale yellow-green colour of the plant, aaa ‘the large 
and very thin-walled leaf-cells will distinguish it from most others. 
It is with A. crenulata that the plant is more likely to be confused 
