2 So Murray and Boodle . — A structural and 
DISPOSITIO SYSTEMATICA. 
STRUVEA Sond. Bot. Zeit. (1845), p. 49. 
Alga viridis, marina, erecta, stipitata, flabelliformis. Stipes 
simplex vel ramosus, radicatus, monosiphonius, continuus, in 
aetate majore reticulo flabelliformi, costato, coronatus. Reti- 
culum ex filis confervoideis plus minusve articulatis, pinnatis, 
apice per tenacula radicantibus, evolutum. 
Syn. Phyllodictyon , J. E. Gray, Journ. Bot. (1866), p. 69. 
Pterodictyon , J. E. Gray, loc. cit., p. 70. Cormodictyon , Pic- 
cone in Crociera del Corsaro (1884), p. 21. 
1. Str. fthimosa 1 ) Sond., loc. cit., p. 50. Stipes rugosus, reti- 
culo oblongo-ovali (1-2 uncias longo) crenato, coronatus; filis 
2-3-pinnatis ; articulis pinnarum diametro 2-3-plo, pinnu- 
larum sesqui-longioribus. Harv. Phyc. Austr., Tab. xxxii. 
Kiitz. Tab. Phyc., Bd. vi. Tab. 90. 
Hab. ad oras occidentales Novae Hollandiae legit Preiss, 
Harvey ! Clifton. 
2. Str. macrophylla , Harv. Phyc. Austr., Tab. vii. Stipes 
rugosus, reticulo oblongo-ovali grande, spectabili (4 -6 uncias 
longo, uncias lato) crenato, coronatus; filis pluries pinnatis, 
articulis pinnarum 5-6-plo, pinnularum 3-4-plo, diametro 
longioribus. 
Hab. ad oras occidentales Novae Hollandiae legit Mrs. 
Drummond ! Clifton ! 
3. Str. ramosa , Dickie, in Linn. Soc. Journ. Bot., vol. xiv, 
p. 316. Stipes rugosus, sursum opposite ramosus, reticulis 
subellipticis ; filis tripinnatis, articulis inferioribus pinnarum 
7-8-plo, superioribus 3-4-plo, diametro longioribus. 
Syn. Stntvea anastomosans , Harv. (sic.) var. canariensis , Picc. 
et Grun. in Crociera del Corsaro, Genova (1884), p. 20. 
Hab. ad Bermudam, ex profundis extracta. H.M.S. ‘ Chal- 
lenger ’ ! et ad insulas Canarienses legit Piccone ! 
1 We have seen, in the Edinburgh Herbarium, a type specimen of S. plumosa 
collected by Sonder. The plants, though younger, have very much longer stalks 
than Harvey’s, and an examination of the young frond confirms the view expressed 
above as to its development. 
