Conreryoidea}, PithoplioracccB, Pithophora. 387 



ordinis et subacinetalibus nuUis, acinetis pne latitudine paullulum 

 brevioribus differt. 



6. Pithophora Cleveana Wittr. On the Devel and syst. Arrang. of tlie 1016 

 Pithoph. p. 58, t. II, f. 13-15, t. IV, t. 12-18, t!^ V, f. 1-8, Hedwi- 



gia 1878, p, 120. — Terrestris, subgracilis et subbrevis ; filamento 

 princinali partis thalli cauloidea^. speciminum fertilium circ. 75 a. 

 crasso, ramos plerumque unius solum ordiuis, interdum autem duo- 

 rum, singulos vel raro binos oppositos emittente; ramis cellulis 

 helicoideis scepe pra^ditis ; acinetis vel inclusis vel terminalibus, 

 solitariis, raro geminatis; acinetis inclusis subelongato-orculsefor- 

 mibus vel rarius subcylindraceis, illis circ. 216 i^ 102, his circ. 

 164ii70; acinetis terminalibus (haud raro sessilibus) orcula?formi- 

 bus, sursum brevi-acuminalis, apice rotundato, circ. 232:^93. 



Ilab. ad terram ad uS. Thomas» pr. «Soldier-Bay )) in India 

 occidentali (P. T. Cleve). 



Scclio II. Heterosporas Wittr. I. c. 62 : Aeinetse in eadera specie forma variae, 

 inclusae forma triplici h. e. orculaeformes, cylindracese et subirregulares 

 terrainales forma duplici h. e. orculaeformes et cylindracese, superne co- 

 noideaj apiceque saepe rotundatae. 



7. Pithophora microspora Wittr. Boletim da Socied. Broteriana fasc. lon 

 III-IV, p. 132 [Coimbra 1885] et in Notarisial, p. 77, — Gracilis, 

 elongata; filamento principali 60-70 a. cr., ramos singulos duorum 

 ordiaum emittente; cellulis vegetativis longis, 12-17-plo diametro 

 longioribus; acinetis omnibus solitariis sparsis; acinetis intercala- 

 ribus subcylindricis, 84-192^60-90; acinetis terminalibus subco- 

 nicis vel suborculaeformibus, apice rotundato, 90-240 z. 54-75. 



llab. ad u Pomangala et Quitibe, Rio Bumbo» in Africa. — Haec 

 species locum suum tenet inter P. ClevearCam Wittr. et P. po- 

 lymorpliam Wittr. 



8. Pithophora polymorpha Wittr. On the Devel. aud syst. Arrang. lois 

 of the Pithoph. p. 62, t. I, f. 13-17, t. IV, f. 19, Hedwigia 1878, 



p. 120, Cladophora crispata Kuetz. in Hohenacker Alg. n. 472 

 nec Species. — Subvalida; tilamento principali partis thalli cau- 

 loidese speciminum fertilium circ. 105 y.. crasso, ramos unius v. duo- 

 rum ordinum emittente; ramis ordinis primi singulis vel (rarius) 

 binis oppositis, ramis ordinis secuudi singulis; acinetis solitariis 

 (rarius geminatis) vel inclusis vel terminalibus ; acinetis in ramis 

 primi ordinis inclusis vel cylindricis vel orculaeformibus; acinetis 

 in filamento principali inclusis plerumque forma subirregulari do- 

 natis; acinetis cylindricis circ. 88i;63, orculseformibus 157^:104, 



