(Vol. V, 1913). franz stephani. species hepaticarum Harpalejeunae. 



Europa. 



55. Harpalejeunea ovata (Dicks.) S. Hep. Am. And. 1884, 

 Jungermannia ovata Dicks. Pl. crypt. fasc. 3, p. 11. 

 Lejeunea ovata Syn. Hep. 1845, p. 376. 

 Lejeunea Molleri St. Hedwigia 1887, p. 2. 



Dioica, exigua, dilute brunnea, in cortice dense depresso caespitans. 

 Caulis ad 15 mm. longus, irregulariter pinnulatus, sub flore simplici- 

 ter innovatus. Folia caulina parum imbricata, oblique patula, valde 

 concava apiceque arcte decurva, in plano ovato-oblonga (0,4 mm. longa, 

 0,25 mm. lata) acuta, brevi basi inserta, basi antica truncato-rotundata. 

 Cellulse superae 18 ft, basales 18x27 p trigonis majusculis; ocelli 

 basales 4, magni, 54 |i. Lobulus magnus, oblongus, folio duplo brevior, 

 oblique adscendens, triplo longior quam latus, carina bene arcuata, 

 recto angulo in folium excurrens, apice quam basis duplo angustiore, 

 subrecte truncatus, angulo obtuso, sub apice leviter constrictus. 

 Amphigastria caulina parva, caule duplo latiora, obcuneata, parum 

 latiora quam longa, apice leviter emarginata vel retusa, lobis rotun- 

 datis. Perianthia obovato-oblonga, plicis posticis ad medium decurren- 

 tibus, rostro parvo. Folia floralia caulinis multo majora, lanceolata 

 <1 mm. longa, 0,4 mm. lata) acuta; lobulus parum brevior, anguste 

 lanceolatus, breviter solutus, obtusus vel acutus. Amphigastrium florale 

 lobulis aequilongum, obovato-oblongum, duplo longius quam latum, 

 apice leviter lateque emarginatum, lobis obtusis. 



Hab. Europa oecidentalis. Madeira, America septentrionalk. 



Addendum. 



Harpalejeunea diversistipa (Ldbg et G.) St. 



Lejeunea diversistipa Ldbg et G. Syn. Hep. p. 765. 



Monoica, parva, dilute brunnea, rigidula, aliis hepaticis consociata. 

 Caulis ad 2 cm. longus, sparsim iongeque ramosus. Folia caulina 

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

 in plano late ovata (0,75 mm. longa, medio 0,58 mm. Jata) brevi basi 

 inserta, basi antica longe truncata, apice acuta, integerrima. Cellulse 

 superae 27 X 27 {i, basales 18 X 36 parietibus validis, trigonis 

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