738 choisdrus. 



apicibus obtusis. Palmaris. — «Fructus glomeruii scminum mi- 

 nutissimorum segmentis superioribus toti immersi, ila ut ibi quasi 

 punctata tantum appareat frons. » Ag. Spec. I. p. 255. (Sphaero- 

 cocc.) — Ad Novam-Hollandiam. 



18) Ch. Torreyi. Grev. 1. c. — Ch. spithamaea, plane regu- 

 lariter dichotoma inferne teretiuscula, cornea, segmentis filiformi- 

 bus planis, axillis rotundatis, apicibus atlenuato-obtusis. Sub- 

 stantia coriaceo-cornea, rigida. Color exsicc. fuscescens. Fruclus 

 ignoti. — Sphaeroc. Torreyi Ag. Sp. I. p. 254. — Ad New-York. 



49) Ch. fragilis. Grev. 1. c. — Ch. phycomatibus aggregatis 

 spithamaeis, planis, compressis repetito-dichotomis linearibus ri- 

 gidis cartilagineis, axillis rotundatis, apicibus obtusis. Callus ra- 

 dicalis scutatus informis, magnus. Lat. ad 1'". Color purpureus, 

 in lutescentem mutabilis. — Sphaeroc. fragilis Ag. 1. c. p. 253. 

 ■ — Mont. Fl. Boliv. p. 27. — Ad Cap. Bonae Spei; ad oras Ame- 

 ricae meridionalis. 



20) Ch. linearis. Grev. l..,c. — Ch. phycomate spithamaeo ad 

 basin teretiusculo sursum explanato et plano-compresso, lineari 

 dichotomo, segmentis linearibus coryrnboso-fasligatis apice rotun- 

 datis; axillis acutis; cystocarpiis hemisphaericis in disco phycoma- 

 tis sparsis. — Fucus linearis Turn. Tab. 220. — Sphaerococcus 

 linearis Ag. Spec. I. p. 250. — In Americae borealis oris occi- 

 dentalibus. 



21) Ch. spermophorus. Grev. 1. c. — Ch. phycomate palmari 

 basi tereti caulescente, sursum sensim complanato lineari dicho- 

 tomo fastigato, axillis acutis, segmentis supremis attenuatis multi- 

 fidis numerosissimis; cystocarpiis hemisphaericis rugosis laterali- 

 bus. — Fucus spermophorus Turn. Tab. 76. — Ceramium sper- 

 mophorum Roth, Cat. III. p. 113? — In mari Indico. 



22) Ch. capensis. Kg. — Ch. anguste linearis, slipite elon- 

 gato basi attenuato tereti, sursum in phycoma complanatum di- 

 chotome fastigatum transiente , segmentis superioribus furcatis 

 fructiferis. Cystocarpiis approximatis papillaeformibus semi-im- 

 mersis, spermatia minora glomerata conlinentibus. Basis scutata. 

 Segmenta superiora sterilia patentia apicibus obtusis breviter fur- 

 catis. — Halymenia furcellata y. capensis Ag. Spec. p. 214. — 

 Halymenia capensis Mont. Crypt. Canar. p. 164. — Ad Cap. Bon. 

 Spei legit cl. Pappe. (v. s.) 



23) Ch. congestus. Grev. 1. c. — Ch. gelatinoso-cartilagineus 

 3 — 5uncialis, caule elongato pennam merulinam crasso, ramosis- 

 simo, ramis confertis, ramulis patentissimis setaceis leviter incur- 

 vis subsecundis ; cystocarpiis minutis immersis. Color albicans, 

 pallidus (sec. Ag. fusco-lateritius). Cellulae medullares epenchy- 

 maticae, corticales perenchymaticae. — Fucus congeslus Broivn. 



— Turn. Tab. 179. — Sphaerococcus congestus Ag. Sp. I. p. 321. 



— Ad Van-Diemens-Land et ins. Kent, prope Novam-HoIIandiam. 

 (v. s.) — Spec. dedit cl. J. D. Hooker. 



