34 Mededeelingen ’s Rijks Herbarium Leiden : 
ginalibus subtetraëdris parvis ilsque vicinis valde inaegualibus sub- 
hexaëdris minus elongatis; soris parvis lateralibus immersis, indusia 
cylindrieo leviter in limbum erectum dilatato. 
Rhizoma intricatum repens setaceum pariter ac stipes basi atro- 
fusco tomentosum; stipes subteres 2—10 millim. longus. Frons 
olivaceo-fusca crispula membranacea subopaca 153 eentim. longa, 24 — 4 
millim. lata. 
Hab. Ins. Mayotta pr. oras Africae australis, Borvin (Herb. Lium.). 
Observ. T. erosum proxime affine differt: parvitate, fronde angusta 
Prichomanes bimarginatum v. p. Bosen. 1. Blattsegment. 2. Fragment vom Rande 
des Blattes, Randzellen und inframarginale Ader. 3. Indusium. 
subspathulata vel obeuneata semper apice dilatata, venulis spuriis 
subeontinuis eum venula spuria submarginali continua contluentibus, 
eellulis majoribus viridi-globulosis, soris apicalibus, indusio brevi 
subito in limbum amplum undulatum patulum leviterve reversum 
ampliato, etc. 
135. T. (Microgonium) bimarginatum v. p. Boscu in Syn. Suppl.: 
Ned. Kruidk. Arch. (1861) V. 2. p. 143. Fig. 22. 
TP. mauscoides Trwarres, Brack. in Wimkes Expl. Exped. (185%) 
XVI. p. 249. 
Fronde breviter stipitata e basi cuneata oblonga vel ovato- 
oblonga, fructifera apice angustata, margine integro repando, raris- 
sime lobato undulato; costa media flabellatim in venas tenues 
concolores simplices vel furcatas abeunte, interpositis venulis spuriis 
in venulam submarginalem conflueutibus; cellulis diaphanis 
magnis regularibus elongato hexaëdris pachydermis amoene viridibus 
globulosis (parietibus hyalinis stratosis rectis, interaneis diffusis s. 
globulosis s. amorphis amoene viridibus), marginalibus dissimilibus 
majoribus abbreviatis 3-4-ëdris marginem inter venulam spuriam 
