Tlijimmnillms. fp.a.nz stepham. speciks hepaticarum (Vol. IV, 1912). 



18 X 36 a park'libiis valiclis, IrigDiiis magiiis. Lobulun iii sitii occultus, 

 in plano rectangulatus, folio qiiadruplo hrevior, apice truncato, augulo 

 apiciiiato, altero dente siniili subapicali. Amphigastria caulina majus- 

 cula, caule triplo latiora, late obcuneata parum longiora quam lata, 

 transverse inserta, apice iate emarginata, angulis acutis. Perianthia 

 angusta, triplo longiora quam lata, plicis sparsini denticulatis, rostro 

 parvo. Folia /loralia intinia perianthio a?quilonga, hamatim patula, 

 lanceolata, acuta, integerrima vel sub apice paucidentata, lobulo ad V/.s 

 breviore, ad medium soluto, lanceolato, acuto, superne reinote denti- 

 culato. Amphigastrium florale intimum foliis floralibus sequilongum, 

 oblongo-eliipticum, apice breviter inciso-bifidura, lobis late triangu- 

 latis, acutis denticulatis. Andrcecia in ramulis terminalia, bracteis ad 

 sexjugis. 



Hali. Brasilid, Guiana, Vcnez-nela, Costarica. 



5. Thysananthus Lehmannianus (Nees) St. 

 Syn. : Phragmicoma Lehnianniana Nees. Syn. Hep., p.302. 

 Dioica? niajor flavo-rufescens, rigidula. Caulis ad 8 cm. longus, 



irregulariter ramosus, inferne fastigiatus, superne dichotome ramosus. 

 Folia raulina parum imbricata, recte patula, parum concava, margine 

 postici) anguste incurvo, in plano ovato-oblonga (2,8 mm. longa, 

 1,6 min. lata) asymmetrica, apice acuta, sub apice denticulata, brevi 

 basi inserta, basi antica grosse circinatim appendiculata, caulem late 

 superantia. Cellulai superae 18x27^1,, basales 18X36 |x trigonis stel- 

 latis, in inedio parietum nonulosis. Lobidus in situ occultus, in plano 

 oblongus, parvus, folio quintuplo brevior, apice oblique truncatus, sub 

 apice bidentatus. Amphigastria caulina majuscula, caule quadruplo 

 latiora, subrotunda, apice late rotundata minuteque dentata, sinuatira 

 inserta, utrinque louge angusteque appendiculata, appendiculis pen- 

 dulis. Perianthia magna clavata, 4 mm. longa, superne sparsim denti- 

 culata, rostro valido. Folia /loralia intima perianthio sequilonga, 

 anguste lanceolata, acuta, superne valide irregulariterque dentata, 

 lobulo duplo breviore, lineari, haud soluto, apice truncato, angulo 

 apiculato, inferne nudo, sub apice denticulato. Amphigastrium florale 

 intimum perianthio longius, anguste ligulatuiu, apice breviter emargi- 

 natum, inferne nudum, apice valide dentatum. Andrcevia ignota. 



Hab. Jamaica. 



Die Originaldiagnose enthalt eine vollig abweichende und ganz un/u 

 treffende Beschreibung des Perianths und seiner Hiillblatter. 



6. Thysananthus mexicanus Tayl. J. of Bot. 1848, p. 199. 



5 .Mai-s 1912. 785 r.o 



