en a art 2 2 ein a 
Contributiones ad Bryologiam austro-afram. 119 
in acumen ligulatum apice rotundatum brevissime apiculatum latius- 
culum integerrimum producta tenuiscula, margine basilari revoluta 
eleganter concava strictiuscula, nervo angusto plus minusve ferrugineo 
percurrente carinato-exarata, e cellulis diaphanis minutis incrassate ro- 
tundis areolata,; perichaetialia cum theca sessili majuscula globoso- 
ovali clavam turgidam sistentia multo majora latiora convolutacea 
grossius incrassate arcolata crassius costata margine magis et longius 
revoluta,; peristomii dentes breves sed late lanceolati raptim subulati 
fissi vel perforati intense purpurei. Caetera nulla. 
Habitatio. Orange Free State, Witteberge supra Kadziberg: 
Dr. A. Rehmann 1875 cum Syrrhopodonte erectifolio. 
Species popria pulchra ad Grimmiam depilem nob. accedens, 
sed caracteribus descriptis, praesertim theca magna turgida jam toto 
coelo diversa. 
178. Grimmia (Platystoma) boschbergiana n. sp.; mo- 
noica; habitus Grimmiae apocarpae; cespites pollicares lutescentes 
laxe cohaerentes; folia caulina minuta densiuscule imbricata, made- 
facta raptim hygrometrica recurvo-patula, e basi excisa decurrente in 
laminam brevem latiuscule ovato-lanceolatam brevissime hyalino-mu- 
cronatam rarius muticam producta, margine ad medium usque revoluta 
integerrima, nervo angusto dilute ferrugineo carinato-exarata, e cellulis 
diaphanis minute angulato-rotundis areolata; perichaetialia multo 
majora latiora erecta convolutacea pallida, e basi tenera laxius reti- 
culata in laminam late convoluto-ovatam deinque irregulariter robuste 
acuminatam et robuste hyalino-mucronatam undulatam producta, ut 
caulina suprema ad summitatem erosa, nervo parum crassiore per- 
cursa,; theca immersa minuta cylindrica, operculo perminuto oblique 
rostellato annulo angusto; peristomii dentes longiusculi anguste lan- 
ceolati plus minusve profunde fissi vel perforati ruberrimi; calyptra 
minutissima glabra tenera operculum solum obtegens; sporae quam 
maxime minutae virides. 
Habitatio. Prom. bonae spei, Somerset East, Mte. Boschberg, 
in sylvis ad truncos arborum frondosarum, No. 1877: Prof. Mac 
Owan 1878 misit. 
A Gr. apocarpa simillima certe distinguitur foliis caulinis vix 
hyalino-mucronatis vel muticis, cellulis ubique diaphanis, foliis peri- 
chaetialibus veluti praemorso -apiculatis nec brevipilis, theca minuta 
annulata et sporis minutissimis. 
179, Grimmia (Platystoma) oranica n. sp.; cespites lati 
decumbentes nigrito-fusci humiles rigidissimi tenacissimi dense intri- 
cati; caulis gracillimus brevis, ramulis brevissimis strictis vel curvulis 
divisus; folia caulina perminuta dense conferta humore raptim hygro- 
metrica e directione recurva patentia, ad summitatem surculi et ra- 
muli stellatim disposita, e basi excisa parum decurrente angustissime 
