Minireview

RN Pienaar and SD Sym 

283

The genus Pyramimonas (Prasinophyceae) from southern African inshore waters

Abstract

Research Papers

MF Pfab 

299

Priority ranking scheme for Red Data plants in Gauteng, South Africa

Abstract

CL Bredenkamp and AE van Wyk  

304

Passerina quadrifaria (Thymelaeaceae): a new species from the southern Cape

and Little Karoo in South Africa

Abstract

AM van der Merwe and EM Marais 

308

Daubenya alba (Hyacinthaceae, tribe Massonieae), a new species from the

Roggeveld, Northern Cape Province

Abstract

BM Colloty, JB Adams and GC Bate  

312

Classification of estuaries in the Ciskei and Transkei regions based on

physical and botanical characteristics

Abstract

HE Hallen, GC Adams and A Eicker 

322

Amatoxins and phallotoxins in indigenous and introduced South African Amanita species

Abstract

BOZ Maseko and TA Coutinho  

327

Pathogenicity of Phytophthora and Pythium species associated with citrus rootrot in South Africa

Abstract

SA Nigro, WA Stirk and J van Staden 

333

Optimising heavy metal adsorbance by dried seaweeds

Abstract

E Coppejans, F Leliaert and T Schils  

342

New records of marine benthic algae for the Mozambican coast, collected at Inhaca Island

Abstract

M Pan and J van Staden 

349

The effect of activated charcoal and auxins on root formation by hypocotyl segments of Daucus carota

Abstract

LH Watson and MJ Cameron  

357

Forest tree and fern species as indicators of an unnatural fire event in a southern Cape mountain forest

Abstract

R Wiseman, CD Morris and JE Granger  

362

Effects of pre-planting treatments on the initial establishment success of indigenous grass seedlings planted into a degraded Aristida junciformis-dominated grassland

Abstract

MF Pfab and JE Victor  

370

Threatened plants of Gauteng, South Africa

Abstract

AM Zobolo and J van Staden  

376

Senescence activity in extracts from fruiting Bidens pilosa plants

Abstract

Short Communications

H Wang and J van Staden  

382

Seedling establishment characteristics of Paeonia ostii var. lishizhenii

Abstract

HO Edeoga and CI Ikem 

386

Tannins, saponins and calcium oxalate crystals from Nigerian species of Boerhavia L. (Nyctaginaceae)

Abstract

AJ Cilliers, ZA Pretorius and PS van Wyk 

389

Mycelial compatibility groups of Sclerotium rolfsii in South Africa

Abstract

PD Hare, WA Cress and J van Staden 

393

Disruptive effects of exogenous proline on chloroplast and mitochondrial ultrastructure in Arabidopsis leaves

Abstract

GF Smith and EMA Steyn 

397

The first record of Agave celsii var. albicans (Agavaceae), a Mexican plant, in South Africa

Abstract

RL Verhoeven and HJT Venter  

401

Pollinium structure in Epistemma: Periplocoideae (Apocynaceae)

Abstract

AK Jäger and J van Staden

404

Soluble sugars in light-sensitive Grand Rapids lettuce seeds treated with red light, gibberellic acid and a plant-derived smoke extract

Abstract

EE Elgorashi, JLS Taylor, A Maes, N de Kimpe, J van Staden and L Verschaeve 

408

The use of plants in traditional medicine: potential genotoxic risks

Abstract

ME Light, LJ McGaw, SG Sparg, AK Jäger and J van Staden  

411

Screening of Cenchrus ciliaris L. for biological activity

Abstract