488 Delesserrie^. Delesseria 



24. D. siMiLANS (J. Ag. Bidr. Fl. Syst. p. 56) fronde a mar- 



gine foliifera decoiuposita, phyllis indivisis (aut tantum 



externa vi laceratis) elliptico-oblongis margine ciliato-ap- 



pendiculatis appendiculisque marginalibus excrescentibus 



sensim pinnatis constituta, costa costulisque angustis op- 



positis fere externe distinctis, cellulis costularum super- 



ticialibus elongatis a cellulis parenchymatis diversis, phyl- 



lis soriferis minutis margine ciliato-spinulosis. Delesseria 



' LyaUii Harv. Alg. austr. exsicc. n:o 271 (non Hook. et 



Harv. Fl. ant.). 



Hab. ad oras Novse Hollaudise. 



Quamquam D. Lyallii simillima, tamen, me judice, distincta spe- 

 cies. Foliola longiora, venis strictioribus et in juvenili jam conspi- 

 cuis notata. marginibusqne obsoletius serratis, demum dense minute 

 appendiculatis, jam nudo oculo distinguenda. Sub microscopio apparet 

 cellulas superiiciales costularum esse elongatas et a parenchymate in- 

 terjacente facilius distinguendas. In D. Lyallii haec differentia vix 

 conspiciatur. 



Vni. Hypoglossum. Frondcs prolifcationihus a costa emergen- 

 tihus ramosm, cceterum indivisie, venis transversalihus 

 microscopicis destitutce, tcmiissim(E, cellidis in series suh- 

 transvcrsales, a costa arcuatim versus marginem excur- 

 rentihus fere ordinatis constitutcB. Coccidia costce insi- 

 dentia. Sori sphmrosporarum in foliolis non mutatis aut 

 suhdiversis minutis evoluti, utroque latere costce singuli. 



* Costa ecorticata, ncmpe scriehus celluJarum Jongitudinalihus 

 paucis constituta, quasi articulata. 



25. D. TKNfuiFOLiA (Harv. Ner. Bor. Amcric. p. 97) fronde ar- 



ticulato-costata, prolilicationibus a costa media subunifa- 

 riam prorumpentibus ramosa, demum fastigiato-subglo- 

 bosa, foliolis tenuissimis elliptico-lanceolatis utrinque ob- 

 tusis evenosis strictis margine integerrimis, soris infra 

 apices foliorum utroque latere costse singulis brevissimis. 

 Harv. l. c. tah. XXII B. Kutz: tah. Phyc. V. XIX fah. 13. 

 Ad Floridam. 



24a. D. oviFOLiA (Suhr. mscr.) subpalmaris breviter stipitata i^hyllo- 

 mate latiusculo oblongo-lanccolato obtuso costato; costa crassa 

 opposite pinnata, pinnis apice in dentes vel folia elliptico-Linceo- 

 lata excrescentibus. Kiitz. tab. Phyc. Vol. XVI tab. 19. 

 Cap. B. Spei. 



