1812 Eu-Floridese, Corallinace*, Amphiroa. 



Sect. II. EuRYTiON Decne 1. c. p. 126 (113). — Articuli rigidi plus minusve 

 compressi aut ancipites, conceptaculis conicis instructi. 



V2. Amphiroa Tribulus (Ell. et Sol.) Lamour. Polyp. flex. p. 302, Kiietz. 21159 

 Sp. p. 703, Tab. Phyc. VIII, t. 46, f. I (liaud boiia), Aresch. in 

 J. Ag. Sp. II, p. 534, Corallina Tribulus Ell. et Sol. Zoophyt. 

 p. 124, t. 21, f. C. — Fronde exiniie lapidescente, tereti vel senii- 

 tereti, irregalariter di-trichotome raniosa, superne attenuata, ramis 

 ramulisque patentibus, his subulato-attenuatis semiteretibus, arti- 

 culis crassitie a^qualibus diametro 6-8-plo longioribus, geniculis 

 lineceformibus. 



Hab. ad insulam Sanctse Crucis Indise occidentalis (Oersted). 

 — Ex omnibus maxime fere lapideo- seu siliceo-durissima atque 

 fragilissima. Frons 2-6,5 cm. longa, 2-4 mm. crassa, coloris rubri, 

 normaliter forsan dichotoma, at dichotomi£e hic illic plus minus 

 irregulares, superne attenuata, ut sint denique articuli apicales vere 

 subulato-attenuati. Rami ramulique altera pagina teretes, altera 

 plani indeque Siepe, quamquam non ubique, semiteretes. Ex hoc 

 ipsam plantam rupi, in qua crescit, adpressam esse facile clarus 

 Areschoug putat. 



13. Amphiroa ephedraea (Lamarclc) Decne Corall. p. 124 (112), Aresch. -2960 

 in J. Ag. Sp. n, p. 534 (var. (3!), Harv. Ner. austr. p. 95, t. XXXIX, 

 Yendo Corall Japon. p. 8, t. I, f. 7-10, t. 4, f. 5-8, Corallina 

 ephedrasa Lamarcli in Mera. du Museum II, p. 238, Amphiroa 

 Gaillonii Laraour. Pol. flex. p. 298, t. XI, f. 3, Kuetz. Sp. p. 703, 

 Amphiroa Gueinzii Harv. Ner. austr. p. 95, Kuetz. Tab. Phyc. 

 VIII, t. 48, f. I, Amphiroa fiisoides Laraour. Pol. flex. p. 298, t. XI, 

 fig. 2, Amphiroa ventricosa Laraour. sec. Decaisne, Amphiroa 

 Poeppigi' Endl. et Dies. in Mohl et Schlecht. Bot. Zeitung 1845, 

 p. 290, Kuetz. Spec. p. 702, Amphiroa Gaillonii Kraus Beitrag 

 zur Flora des Cap- und Natal-Landes p. 206. — Fronde elata, 

 regulariter dichotoma flabellata, sursura vel tereti et attenuata vel 

 compressa et subdilatata, ramis ramulisque patentibus, articulis 

 inferioribus diaraetro brevioribus, superioribus 3-5-plo diametro 

 longioribus, geniculis inferioribus diametrum subcequantibus, supe- 

 rioribus brevioribus; conceptaculis numerosis. 



Hab. ad oram Capensem a sinu «Algoa» usque ad « Port Natal » 

 frequenter; ad littora Novse Hollandiae (Lamouroux, Harveyj; ad lit- 

 tora Japonite (Yendo). — Species ex omnibus statura fere maxima. 



