systematic account of the genus Struvea. 281 
4. Str.pulcherrima , nob. n. sp. Stipes laevis reticulo oblongo, 
cordato. tricostato, maximo (10 uncias longo, 6-7 uncias lato) 
coronatus ; fills iterum atque Iterum pinnatis, articulls pin- 
narum diametro 3-4-plo, pinnularum 2-plo longioribus. 
Syn. Phyllodictyon pulcherrimum , J. E. Gray, Journ. Bot. 
(1886)4 p. 70. 
Hab. In sinu Mexicano legit cl. Archibald Menzies 1 ! 
5. Sir. tenuis , Zanard. in Nuovo Giorn. Bot. Ital. (1878), 
p. 39. Stipes laevis pusillus reticulo pulcherrimo, cordato- 
ovato, tenuissimo (§■ unc. et longo et lato) coronatus ; fills 
bipinnatis articulls diametro 2-3-plo longioribus. 
Hab. ad Sorong, Nova Guinea legit O. Beccari ! 
6. Sir. delicatula , Kiitz. Tab. Phyc., Bd. xvi, Tab. 2. Stipes 
laevis, simplex vel ramosus, pusillus, reticulo subpyramidato 
(1-2 uncias longo), coronatus;' fills distiche pluries pinnatis, 
pinnis pinnulisque oppositis horizontaliter patentibus, hie illic 
applicatis. 
Species quam maxime variabilis. 
Syn. Cladophora ? anastomosans , Plarv. Phyc. Austr., Tab. ci. 
Hab. ad Novam Caledoniam leg. Viellard ; ad oras occi- 
dentals Novae Hollandiae leg. Harvey! ad Ceylonam leg. 
Ferguson ! ad ins. Guadeloupe leg. Maze ! 
Var. Caracasana , Grunow, in lit. filis reticuli regulariter bi- 
pinnatis. 
Hab. ad Cap. Blanco Caracas leg. Gollma ! 
Species exclusa. 
Sir. scoparia , Kiitz. Tab. Phyc. Bd. xvi, Tab. 2 —Apjohnia 
laete-vifens , Harv. 
CL Grunow misit sub nomine Valoniae radic antis, Grun. 
(Adelaide, Nova Hollandia) et Valoniae rhizophorae , Grun. et 
Picc. (Suakin In mari rubro) duas species immaturas forsan 
Struveae. 
1 On searching Menzies’ own Herbarium in Edinburgh Botanic Garden we found 
another specimen of S. 'pulcherrimo— unfortunately even more incomplete than the 
one referred to. It however exhibits perfectly the beautiful structure of the frond, 
and bears the additional information that it was dredged from 20 fathpms. 
U 
