143 
exsertis prædita.  Asci octospori, paraphysati.. Sporidia forma 
generis Hypoxyli, aseptata, maturitate fusca, lineola spirali (germi- 
nationis?) lucida circumscripta. — Genus habitu fere Cvitoæyli, ad 
Xylariam reapse propius accedens, characteribus autem distinctis, 
partim sporidiorum, partim stromatis satis diversum. 
Spirogramma Boergesenii sp.n. Pl. IV, fig. 3. 
Stromatibus ligno insidentibus, per corticem erumpentibus, 
semigloboso-pulvinatis, rugulosis, ad basim constrictulis, densiuscule, 
nonnumquam subseriatim, dispositis, raro 2—4 confliuentibus, strato 
externo tenui, carbonaceo, fusco-nigro, intus medullaceis, niveis, 
1—2 mm. diam., ad 1 mm. alt. Peritheciis in singulo stromate 
2—6, in medulla interiore immersis, pro ratione maximis, globosis, 
interdum mutua pressione angulatis, circ. !/2 m. m. diam., submo- 
nostichis, nonnumquam minoribus intermixtis. Ostiolis vix exsertis, 
sub lente etiam aegre conspicuis.  Ascis cylindraceis,' superne 
incrassatis, rotundatis, poro jodi ope intense coerulescente (5—6 mx 
x 3 mu), inferne in pedicellum' fragilem, usque 90 £ long., leniter 
attenuatis, p. sp. 120—140 4 (plerumque 125 4) x 10—14 2. 
Sporidiis octonis, superne oblique, inferne' subrecte monostichis, e 
dorso visis oblongis vel elongato-ellipsoideis, e latere curvulis, 
utrinque rotundatis, 21—24 pg < 7—8 pm, juvenilibus guttulatis, 
translucido-flavis, maturis continuis vel rarius plasmate irregulariter 
partito, fuscis, lineola (germinationis?) spirali, tenui, sub vitro 
flava, quae antice in dorso oritur, sporidium semel sinistrorsum 
ambit, ideoque postice in dorsum iterum pervenit, ornatis.  Para- 
physibus longis, tenuibus, evanidis. 
Ad ramos siccos arborum in insulis St. Croix et St. Jan 
Indiae occidentalis. (Leg. F. Boer gesen). 
St. Croix: Jolly Hill 1906. 
St. Jan: Foy Gut 18. 3. 1906. 
Our supposition, that the spiral on the sporidia is a germinative 
line corresponding to the right line, which is always at hand on 
the ventral side of f. ex. Kylaria-and Hypoxylon-spores, could not 
