Hygrolejeunea. franz stephani. species hepaticarum (Vol. V, 1914). 



perianthio duplo breviora, obovato-oblonga, inferne valde angustata 

 apice rotundata, lobulus simillimus, paruin minor, ad V 3 solutus. 

 Amphigastrium florale foliis floralibus gequilongum, obovato-oblon- 

 gum, lobulis breviter connatum, api<v rotundatum. Andmria parva, 

 in caule sessilia, bracteis trijugis. 

 Hab. America tropica, valde communis. 



18. Hygrolejeunea Sullivanti (Gottsche) St. 

 Lejeunea Sullivanti G. Ann. sc. nat. 1864, p. 151. 



Dioica, major, flavo- rufescens, flaccida, in humo spongiose ca?spi- 

 tans. Caulis ad 3 cm. longus, sparsim longeque ramosus. Folia cauliua 

 dense imbricata, recte patula, valde concava apiceque arcte decurva, 

 in plato ovata, subsymmetrica (1,33 mm. longa, 1 mm. lata) apice 

 subacuta, brevi basi inserta, basi antica truncata, marginibus celluloso- 

 crenulatis. Cellulse superae 27X27 basales 27x45 parietibus 

 validis. Lobulus parvus, folio quadruplo brevior, ovato-triangulatus, 

 carina oblique adscendens, arcuata, amplo sinu in folium excurrens, 

 apice quam basis plus triplo angustiore, oblique truncato, angulo 

 spina valida armato. Amphigastria caulina gigantea, dense imbricata, 

 late reniformia (1,33 mm. lata, 0,75 mm. longa) sinuatim inserta, 

 apice leviter retusa, angulis vix prominulis. Perianthia par\di, oblongo- 

 obconica, quinqueplicata, plicis longe decurrentibus, superue valde 

 inflatis, umbonatim prominentibus, rostro parvo submerso. Folia flo- 

 ralia late obovata, perianthio parum beviora, marginibus grosse cellu- 

 loso-crenulatis, lobulus parum brevior, ad medium solutus, late 

 oblongus, similiter crenulatus acutus. Amphigastrium florale foliis flo- 

 ralibus sequilongum, obovato-obconicum, apice anguste retusum, 

 angulis acutis parum prominentibus, marginibus crenulatis. Andrcecia 

 ignota. 



Hab. Nova Granada. Yenezuela. 



19. Hygrolejeunea boliviana St. n. sp. 



Dioica minor dilute flavicans, in cortice caespitosa. Caulis ad 3 cm. 

 longus, sparsim irregulariterque pinnatus, apice longe simplex. Folia 

 caulina dense imbricata, recte patula, concava, in plano optime circu- 

 laria (1 mm. longa et lata) ad medium inserta, basi antica rotundata, 

 marginibus irregulariter celluloso-crenulatis. Cellulse superae 18X18 p., 

 trigonis majusculis, basales 27X36 jt, trigonis magnis. Lobulus par- 

 531 



