MISS E. S. BARTON ON THE GENUS TURBINARIA. 217 
orbieularem sustinente; receptacula racemosa vel corymbosa in axilla folii emer- 
gentia; dioica vel monoica, interdum hermaphrodita. Radix fibrosa. 
The distribution of the genus extends through tropical and temperate seas, though 
never reaching further south than the Cape and Western Australia, or further north than 
the China seas; otherwise it is confined to the tropics. Two species, 7. tricostata and 
T. trialata, are West Indian, and the latter of these occurs also in the Indian Ocean, at 
the Cape, and on Australian shores, while 7. tricostata also occurs in Eastern seas, in the 
form of var. Webere, near Batavia. The others are all oriental. Its distribution recalls 
that of its ally Sargassum, only it is very much more limited in range. For example, 
we have only two species in the Atlantic, and these reach no further north than the 
West Indies, and are therefore absent from the Mediterranean. АП the species occur in 
Eastern seas (seven of them exclusively there so far аз is known), and three of these 
reach Australia, while three occur in China seas. The genus, therefore, has reached its 
greatest development in point of variety of form and geographieal range in warm 
Eastern seas. 
1. T. coxorpzs, Kütz. Tab. Phye. vol. x. p. 24, tab. 66. Caulis ramosus, ramis elongatis 
cylindraceis, vesicularum petiolo оһсопісо obsolete marginato, lamina lata, dentata, 
subecostata terminato; receptaeulis ramoso-cymosis. (Tab. LIV., fig. 1.) 
Fucus turbinatus, L. Sp. Pl. ii. p. 1160; Syst. Nat. ed. 12, ii. p. 715; Syst. Nat. ed. J. G. Gmel. ii. 
р. 1380; Hort. Cliff. p. 478; Esper, Icon. Fuc. p. 29, tab. ix.; S. Gmel. Hist. Fuc. p. 97, tab. 5. fig. 1. 
Turbinaria denudata, Bory, Voyage de la * Coquille, Bot. p. 117 (partim). 
Turbinaria vulgaris, var. conoides, J. Ag. Spec. Gen. et Ord. Alg. vol. i. p. 267. 
Hab. Ad ins. Sumatra, Ekeberg! in Herb. Linn. Singapore, Marchesetti Аа 
Birakeké, Celebes, Domina Weber van Bosse! Іп oceano Indico ad Zeylonam, Ferguson | 
nos. 82 (et 83 partim); in sinu Manaar, Thurston! Mangalore, Falconer! Ad Chinam, 
Herb. Binder. In fretù Torres, Haddon! Ad oras bor. Novee Hollandise, В. Brown! Ad 
oras Nove Hollandie, Herb. F. von Mueller! et ad ins. Mangaia, Gill! Ad litt. Kam- 
tschatica, Stellerus fide Gmelin. 
Var. EVESICULOSA, mihi; petiolo triquetro emarginato, vesiculis nullis. 
Hab. Ad ins. Edam et Enkhuizen prope Bataviam, Domina Weber van Bosse legit ! 
2. T. DECURRENS, Bory, Voy. de la ‘ Coquille, Bot. p. 119. Caulis ramosus, ramis elon- 
gatis cylindraceis, vesicularum petiolo obpyramidato, angulis alatis, dentatis, in 
laminam peltatam hine costatam continuatis; receptaculis subracemosis. 
Fucus conoides, Forskàl, Flora JEgyptiaco-arabica, р. 192. 
Fucus turbinatus, Turn. Fuci, vol. i. p. 50, tab. 24. figs. a et b. 
Turbinaria vulgaris, var. decurrens et var. triquetra, J. Ag. Spec. Gen. et Ord. Alg. vol. i. p. 267. 
Turner quotes Fucus turbinatus, L., as this species, and later writers have been content to quote Turner. 
However, from a comparison of the Linnean type-specimens with Dawson 'Turner's figures and specimens, 
it is plain that they are not the same species. Fig. 0 of Turner shows the winged and dentate petiole of 
T. decurrens, and this is absent in the Linnean specimens, which agree exactlv with T. convides, Kütz. 
Dawson Turner’s own specimens preserved in Herb. Kew are certainly 7. decurrens. 
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