S4 
BOTANY OF KERGUELEN ISLAND. 
1. Batracliospermum minutissiimim, Eeinsoh in Joum. Linn. Soc. 
XV. 220 ; 0 minimis, oculis inarmatis vix conspicuum, parasiticum, fllis iiitegerrimis 
erectis singulis aut perpaucis aggregatis, articulis inferioribus subouneiformibus 
ajiioe paulo incrassatis, cellulis corticalibus 4is — Gis obtectis superioribus nudis 
vectangularibus, ramulis vertioillorum integerrmiis (rarius singulis ramulis instruc- 
tis) anqualibus, apicibus paulo angustatis ex cellulis 5is^ — 7is exstitutis apicem 
fili versus sensim dccrcscentibus, inferioribus articulorum longitudine subaequantibus, 
summis duplo-triplo longioribus, cellulis ramulorum reotangularibus usque sub- 
quadraticis, cytiodermate cxtcriore tenuissimo vix conspicuo, cytioplasmate sub- 
bomogeneo colore obscure olivaceo-viridl ; fructiflcatio ? — Diam. articulorum 
0,0041— 0,0056mm. — jfg-'" Engl.) Diam. ramulorum 0,0041mm. Engl.) 
PlantuloB altitudo 0,37— 0,45mm. (-) — Engl.) 
In NitelltP. cellulis et in muscorum foliis, in filis singulis sparsis cum aliis 
algis ( Tohjpotlirix, Leptothrix) intermixtis, rarius in cajspitulis parvulis. 
B. tumklum, in CAom wii/ari crescens (Reinscb, Contributiones, p. 69, tab. xliv., 
Jlbodopb. fig. 1-5) a speciebus bucusque cognitis proxima species, sed valde 
diversa dimensionibus omnium partium multo majoribus (3-41ineas longa), verti- 
cillorum ramulis numerosis repetito dicliotome ramosis ; in ramulorum cellularum 
forma aliqua similitudine consentit. 
[The fresh- water species recorded by Eeinsoh are 106, to these may be added the 
following mentioned in the Antarctic Flora: — Oscillcitaria pthrpurea, Hook. f.& Harv., 
Calothrix olivacea, II. f. & H., Ulva oristata, H. f. & H., Mastodia iessellata, 
H. f. & H., Trypothallvs anastomoscms, 11. f. & II., NosIog commune, Vaucher, and 
N. microscopicum, Carm., making a total of 113 species. This interesting Antarctic 
island, therefore, so far as explored, appears to ho very rich in certain forms of fresh, 
water Algce. — Q. Dickie.'] 
