2 
congesta latiiiscule ovata, acumine brevissimo acuto plus minus 
liorizontaliter recurvato terminata, usque ad acumen cucullato- 
concava, margine suberecto superne teirerrime indistincte cre- 
nulata yel Integra, nervo tenuissimo in inneronem brevissimum 
exeunte percursa, e cellulis pellucidis teneris pro plantula ma- 
jusculis sed marginem versus minoribus rhomboideo-liexagonis 
reticulata, infima pauea multo minora; tlieca minuta globosa 
omnino inclusa. 
Patria. Paraguay, summitate montis Cerro de Yuguaron, 
in terra planitiei, 17. Junio 1879: B. Balansa No. 3624. 
Gemmula minutissima albida tereti nec trigona foliisque 
recurvato-aeuminatis facile distinguenda species. 
2. Acaulon ( Sphaerangium) Sullivani n. sp.; dioicum; 
gregarium vesiculoso-globosum membranaceum e pallide yiridi 
dilute fuscatum paucifolium; folia contertissima, inferiora minora 
latiuscule ovata, nervo angusto in mucronem subrectum brevem 
robustiusculum exeunte percursa aperto-concava, superiora multo 
majora latiora valde conyolutacea, e basi angustata brevi lato- 
ovata et raptim fere in acumen plus minus robustum longiu- 
sculum fusco-mucronatum attenuata integerrima hie illic im- 
presso-undulata, nervo angusto fuscato exeunte percursa, e 
cellulis basi elongatis angustis pellucidis laxis veluti emarcidis 
teneris apicem versus amplioribus plus minus liexagonis firmio- 
ribus luteis vel fuscis summitate minoribus magis incrassatis 
saepius rotundatis reticulata; tlieca majuscula inclusa globosa 
fusco-rubra mollis brevissime pedicellata; calyptra minutissima 
mitraeformis stylum longum gerens fugacissima; sporne mediae 
spliaericae tenerrime papillosae luteae. 
Patria. Australia, Victoria, Mount Ararat: Sullivan 
1882 lg. Hb. Melbourne. 
Ex magnitudine Ac. mutici, sed magis sphaericum inflatum 
vesiculosum. 
3. Acaulon (Sphaerangium) vesiculosum n. sp.; dioicum; 
parvum sphaerico-acuminatum (juventute angustius magis acu- 
minatum) vesiculoso-turgescens e viridi fuscatum paucifolium; 
folia dense imbricata, infima minutissima e basi latiore coch- 
leariformi-ovalia brevissime recte apiculata, nervo ante apicem 
evanido tenuissimo percursa, margine erecto integerrima, supe¬ 
riora multo majora coclileariformi-ovata concava nec convoluta 
basi angustiora parum longius recte apiculata, perichaetialia 
