360 Du.MOMiEtf. Hfilosaccion. 



Substantia mcmbronacea. Color purpureo-violaceus. Chartao non ad- 

 liieret." Descript. Agardhi 1. c. transscripsi. 



6. DUMONTIA CAXARIENSIS (Mont. Can. p. 16o) "slipito abbreviate in 

 (rondos plnrcs inflate cylindricas obovatas, intiis cavas, simpli- 

 ces aut e pnripheria ramenta consimilia emiltonles; uon>]ylis 

 tcrnalis per frondem sparsis. 

 Uab. in liltoribus Insulre Canarirc (Despreaux). 

 Radix callus minimus. Frondes ex eodem stipite sen caule filiformi 

 abbreviate bilinear! surgunt plures, juniores clavtefornK's, adulU-c obovata?, 

 basi attenuatae, quasi petiolatae, intus cava3, novcm linoas longse, diametru 

 lantum bilinear!, apice rotundatoe, plerumque simplicos, interdum vero 

 ramenta consimilia, brevissima, raro lineam superantia, passim e pcriphe- 

 ria nee ad ortum ullo modo constricta progignentcs. II;r fronde?, quo?, 

 dum \ivnnt, humore mucilaginiformi repleta; sunt, e cellulis conslaut tenuis- 

 simis, pellucidis et sub microscopio composito vix perspiciendis, epider- 

 mide punctulato religalis. Fructus: Gongyli, ut in Iridaru reniformi (3rev. 

 (Alg. Brit. p. 46!) ternali, purpurei, bine inde sub epidermide sparsi. 

 Color roseus vel purpurascens in viridem transiens, maxime fugax. Sub- 

 sLantia gelatinoso-membranacea, tenerrima. 



Vix hujus loci Dumontia ovalis Sulir (Flora, May, 18-i-O, p. 274 n. 

 \8) cujus exemplar, mancum quidem, benignc mecum communicavit celeb. 

 Lehmann, cum cl. Suhr fructum quidem plane diversum, substantiam co- 

 riaceam, coloremque obscure purpuream Aiga3 sua? tribuit, omnia mea3 

 prorsus aliena." 



Obs. Dumontia clava Post, ct Rupr. 1. c. ad Adenocystem forsan referatur. 



LV. CHYLOCLADIA Creo. mscr. in Hook. Br. Fl. (exclns sp.) 

 Chondrothamnion ct Chendrosiplion liiitz. Plujcol. gener. p. 

 438 el Sp. Afy. p. 859. Clirysymoniae sectio J. Ag. Ala. wed. 

 p. 106; Harr. Ner. Austr. p. 77. Clirysyraeniaj sectio, He- 

 liscopliora, Endl. Gen. plant. Suppl. 111. p. 42. Chondrioj et 

 Chylocladia; sp. Auct. 



Frons teretinscnla raraosa tubiilosa, filis s])arsissimis arlicnlalis tu- 

 biini pfTcurrentilms; peripherico strato collulis rotundato- 

 aivjulatis conlexto. Cyslocarpia inlra pericarpiinn oxtcniinn, 

 rarpostoinio denunn apcrttnn, linoleum niuco hyaline cinctiini, 

 lilisiiut! anastomosantiluis in reticulinn conjunctis circumdatnin 

 fovcnlia; jjemmidia in arlicnlis lilonnn a plan-nla radiantinm 

 cvolnla, dejiiinn plnrima con;;lobala. Splnrrospone niorphesi 

 ci'lhilarum infra-corticaliuin I'oniiata 1 , sparse ant demnm ag- 



