About
Contact
Links
Electronic Flora of South Australia
Electronic Flora of South Australia
Census of SA Plants, Algae & Fungi
Identification tools
 

Electronic Flora of South Australia Species Fact Sheet

Perischelia glomulifera (J. Agardh) J. Agardh ex Kylin 1956: 397, fig. 311B.

Phylum Rhodophyta – Order Ceramiales – Family Ceramiaceae – Tribe Ceramieae

Selected citations: J. Agardh 1897: 34. De Toni 1924: 530. Huisman 1997: 199. May 1965: 370. Silva et al. 1996: 419. Stegenga & Bolton 1992: 101, 104. Womersley 1948: 178.

Synonym

Thamnocarpus? glomuliferus J. Agardh 1885: 6; 1890b: 489. De Toni 1903: 1521. Lucas 1909: 53; 1929b: 53. Lucas & Perrin 1947: 372. Reinbold 1898: 52. Wilson 1892: 185.

Thallus (Fig. 192A) medium to dark red-brown, 5–20 (–30) cm high, much branched irregularly with extended axes or long branches, heavily corticated (Fig. 192B), upper branches bearing short glomeruliferous tufts (Fig. 193A) 1–2 mm long and across, on a short corticated stalk bearing branched monosiphonous filaments 1–2 mm long. Holdfast discoid, 2–5 mm across; epilithic. Structure. Axial cells enlarging rapidly from apices, becoming 200–800 µm in diameter and L/D (1.5–) 2–4 in mature branches, thick walled, corticated (Fig. 192B, D) from close to apices by compact rhizoidal filaments of inner elongate cells, surface cells (Fig. 192B) short, isodiametric, 2–3 µm across, forming a smooth, compact, surface layer. Axial cells clearly visible along the branches in dried specimens, with the end walls supporting the cortex slightly more than the side walls. Glomeruliferous tufts (Fig. 193A) on short, corticated, lateral branches, bearing several to many determinate, more or less alternately pinnate, branchlets (Fig. 192C) 0.5–1 mm long, with slender basal cells (Fig. 192E) 25–35 µm in diameter and L/D 1.5–3, mid rachis cells 40–85 µm in diameter and L/D 1–1.2, tapering only slightly in the pinnules to 30–50 µm in diameter and L/D 0.8–1.2 until the 1–3 terminal cells, with a small mucronate end cell. Rhodoplasts discoid.

Reproduction: Unknown.

Lectotype from Port Phillip Heads, Vic. (Wilson, Jan. 1882); in Herb. Agardh, LD, 20211. Isolectotype in MEL, 45157.

Selected specimens: Champion Bay, W. Aust. (Gale, Herb. Agardh, LD and MEL,45155, 45156). Port Denison, W. Aust., drift (Kraft 3966, 14.xii.1971; AD, A41741). Hamelin Bay, W. Aust., drift (Royce 781, 1.vii.1950; AD, A15486). Daly Head, Yorke Pen., S. Aust., drift (Woelkerling, 26.iii.1967; AD, A31406). Marion Reef, off Edithburg, S. Aust., 12m deep (AIMS-NCI, Q66C, 2402-A, 11.ii.1989; AD, A58772). Victor


Distribution map based
on current data relating to
specimens held in the
State Herbarium of SA

Distribution: Champion Bay, W. Aust., to Port Phillip Heads, Victoria.

Taxonomic notes: Short-stalked globular bodies (Fig. 193A) 300–650 µm in diameter occur on the glomuliferous laterals on most thalli, composed of a central mass (Fig. 192E) of short-celled filaments bearing compact radiating filaments with terminal, narrowly clavate, cells (Figs 192E, 193B) 3–5 µm in diameter and L/D 4–6. Function unknown.

Harbor, S. Aust., drift (Womersley, 19.ix.1965; AD, A29519). Vivonne Bay, Kangaroo I., S. Aust., drift (Womersley, 14.i.1948; AD, A6887). Seal Bay, Kangaroo I., S. Aust., drift (Womersley, 21.i.1965; AD, A28635 and 61.1990; AD, A60130). Pennington Bay, Kangaroo I., S. Aust., drift (Womersley, 11.ii.1956; AD, A20128). Cape Jaffa, S. Aust., drift (Womersley, 3.xii.1989; AD, A60041).

Perischelia agrees morphologically with Ceramiaceae but cannot be placed in a tribe until reproductive plants are discovered. The nature of the globular organs is presently unknown.

* GENUS OF UNCERTAIN POSITION

These two genera cannot be placed satisfactorily. The first, Perischelia, while distinctive morphologically, is unknown reproductively; it agrees with the Ceramiaceae. The sceond, Episporium, has been placed in its own tribe (Episporieae) in the Ceramiaceae, but it is doubtful if it belongs to this family.

In both cases, the species are the only ones in the genus, so the specific description suffices for the genus.

There are also other undescribed taxa represented in AD by inadequate and usually non-reproductive specimens, which await description when better material is available.

References:

AGARDH, J.G. (1885). Till algernes systematik. VII. Florideae. Acta Univ. lund. 21, 1–120, Plate 1.

AGARDH, J.G. (1890b). (Translated by J.B. Wilson). Descriptions of new Victorian algae. Rep. Second Meeting Aust. Ass. Adv. Science (Melbourne, Victoria), pp. 488–491.

AGARDH, J.G. (1897). Analecta Algologica. Cont. IV. Acta Univ. lund. 33, 1–106, Plates 1, 2.

DE TONI, G.B. (1903). Sylloge Algarum omnium hucusque Cognitarum. Vol. 4. Florideae. Sect. 3, pp. 775–1521 + 1523–1525. (Padua.)

DE TONI, G.B. (1924). Sylloge Algarum omnium hucusque Cognitarum. Vol. 6. Florideae. (Padua.)

HUISMAN, J.M. (1997). Marine Benthic Algae of the Houtman Abrolhos Islands, Western Australia. In Wells, F.E. (Ed.) The Marine Flora and Fauna of the Houtman Abrolhos Islands, Western Australia, pp. 177–237. (W. Aust. Museum: Perth.)

KYLIN, H. (1956). Die Gattungen der Rhodophyceen. (Gleerups: Lund.)

LUCAS, A.H.S. & PERRIN, F. (1947). The Seaweeds of South Australia. Part 2. The Red Seaweeds. (Govt Printer: Adelaide.)

LUCAS, A.H.S. (1909). Revised list of the Fucoideae and Florideae of Australia. Proc. Linn. Soc. N.S.W. 34, 9–60.

LUCAS, A.H.S. (1929b). A census of the marine algae of South Australia. Trans. R. Soc. S. Aust. 53, 45–53.

MAY, V. (1965). A census and key to the species of Rhodophyceae (red algae) recorded from Australia. Contr. N.S.W. natn. Herb. 3, 349–429.

REINBOLD, T. (1898). Die Algen der Lacepede und Guichen Bay (Slid Australien) und deren näherer Umgebung, gesammelt von Dr. A. Engelhart-Kingston. II. Nuova Notarisia 9, 33–54.

SILVA, P.C., BASSON, P.W. & MOE, R.L. (1996). Catalogue of the Benthic Marine Algae of the Indian Ocean. (University of California Press: Berkeley, Los Angeles & London.)

STEGENGA, H. & BOLTON, J.J. (1992). Ceramiaceae (Rhodophyta) of the Cape Province, South Africa: distribution in relation to concepts of marine provinces. Bot. Mar 35, 99–107.

WILSON, J.B. (1892). Catalogue of algae collected at or near Port Phillip Heads and Western Port. Proc. R. Soc. Vict. 4, 157–190.

WOMERSLEY, H.B.S. (1948). The marine algae of Kangaroo Island. II. The Pennington Bay Region. Trans. R. Soc. S. Aust. 72, 143–166, Plates 10–15.

The Marine Benthic Flora of Southern Australia Part IIIC complete list of references.

Author: H.B.S. Womersley

Publication: Womersley, H.B.S. (24 December, 1998)
The Marine Benthic Flora of Southern Australia
Rhodophyta. Part IIIC. Ceramiales – Ceramiaceae, Dasyaceae
©State Herbarium of South Australia, Government of South Australia


Illustrations in Womersley Part IIIA, 1998: FIGS 192, 193A, B.

Figure 192 image

Figure 192   enlarge

Fig. 192. Perischelia glomulifera (A–C, E, AD, A60130; D, AD, A28635). A. Habit. B. Axis of large axial cells, small-celled cortication, and determinate lateral branchlets. C. Pinnate branchlets with alternate, distichous, pinnules. D. Transverse section of corticated branch. E. Squash of clavate organs at base of a glomeruliferous lateral branch.

Figure 193 image

Figure 193   enlarge

Fig. 193. A, B. Perischelia glomulifera (AD, A60130). A. Branch with determinate branchlets and stalked globular organs. B. Squash of filaments from a globular organ. C-E. Episporium centroceratis (AD, A63366). C. Section of female thallus showing carpogonial branches with trichogynes. D. Squash of a male thallus with terminal spermatangia. E. A young thallus showing the basal cell, branched filament, and terminal decussately divided tetrasporangia.


Disclaimer Copyright Disclaimer Copyright Email Contact:
State Herbarium of South Australia
Government of South Australia Government of South Australia Government of South Australia Department for Environment and Water