Mimetes chrysanthus Rourke
VU Indigenous Endemic

Morphological description

An erect, sparsely branched shrub, 1.5-2 m tall with a single main trunk, 40-60 mm in diam., branching at about 200 mm into a few stiffly erect branches; bark grey, smooth. Flowering branches 4-7 mm in diam., minutely and densely puberulous with a white crisped indumentum. Leaves sub-petiolate, petiolar region 3-5 mm long; blade broadly lanceolate to elliptic 30-45 mm long, 10-18 mm wide, minutely puberulous with sparse crisped pubescence, later glabrescent to glabrous; apical callus usually retuse, occasionally bifid. Inflorescence a densely cylindric conflorescence, 60-90 mm long, 55-60 mm wide, topped with a suberect coma of reduced green leaves. Axillary capitula subtended by patent, undifferentiated green leaves; 25-35-flowered, the lowermost capitula usually fewer-flowered than the uppermost. Involucral bracts tightly imbricate; outer series ovate-obtuse, becoming oblong-spathulate 5-10 mm long, 2-3 mm wide, densely lanate proximally, apex rounded, thickened, glabrescent; inner series 6-8 mm long, 1-1.5 mm wide, lanceolate acute, densely sericeous; cartilaginous, enlarging 3-4 times and becoming lignified in the post-pollination phase. Floral bracts linear acute, 8-12 mm long, sericeous, apices crinite. Perianth 24-28 mm long, straight in bud, curving adaxially during anthesis but actinomorphic after anthesis, bright yellow; proximal region 8-10 mm long, segments glabrous, hyaline, free to base but outwardly bowed; cohering and becoming connate in median region forming a densely puberulous tube 6-8 mm long; separating distally, becoming widely splayed and sparsely puberulous; limbs linear, acute, 3-5 mm long, glabrous. Style straight, filiform, 25-35 mm long, glabrous, yellow. Pollen presenter 1-1.2 mm long linear, slightly geniculate at junction with style; stigmatic groove terminal. Ovary oblong-cylindric, scarcely differentiated from style, 2 mm long, puberulous. Hypogynous scales subulate, 1-1.5 mm long. Fruit an ovoid to cylindric achene, 6-8 mm long, 4-5 mm wide, minutely puberulous to glabrescent. Flowering takes place mainly in April and May but probably commences in late March. A few conflorescences apparently continue to open as late as July. When fully open the brilliant yellow conflorescences emit a faint sweet perfume reminiscent of the flowers of Acacia karroo. From: Rourke, JP. 1988. A new species of Mimetes (Proteaceae) from the southern Cape. S. African J. Bot. 54: 636-639. [Copyright held by the South African Association of Botanists (1988); http://www.sciencedirect.com/science/journal/02546299] [CC BY]

Single-stemmed shrub to 2 m. Leaves lanceolate to elliptic, glabrescent; inflorescence leaves similar. Flower heads in terminal spikes, 25-35-flowered, bright yellow, style yellow, pollen presenter needle-like. From: Manning, JC; Goldblatt, P. 2012. Proteaceae. In: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 657-681. South African National Biodiversity Institute, Pretoria. [CC BY]

Diagnostic description

Mimetes chrysanthus is unlike any of its congeners on account of its unique perianth morphology in which the four segments are free and outwardly bowed at the base but then become coherent to form a median tube 8-10 mm long, later separating distally. The multi-flowered axillary capitula (25 to 35 flowers per capitulum), also distinguish M. chrysanthus from related taxa. From: Rourke, JP. 1988. A new species of Mimetes (Proteaceae) from the southern Cape. S. African J. Bot. 54: 636-639. [Copyright held by the South African Association of Botanists (1988); http://www.sciencedirect.com/science/journal/02546299] [CC BY]

Habitat

The majority of populations occur in Dry Mountain Fynbos on moderately steep south-east facing sandstone slopes of the Table Mountain Group at elevations between 800 and 1040 m. From: Rourke, JP. 1988. A new species of Mimetes (Proteaceae) from the southern Cape. S. African J. Bot. 54: 636-639. [Copyright held by the South African Association of Botanists (1988); http://www.sciencedirect.com/science/journal/02546299] [CC BY]

Sandstone slopes. From: Manning, JC; Goldblatt, P. 2012. Proteaceae. In: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 657-681. South African National Biodiversity Institute, Pretoria. [CC BY]

Distribution

Mimetes chrysanthus appears to be endemic to the 9500-ha Gamka Mountain Nature Reserve, situated on the southeastern margin of the Little Karoo. From: Rourke, JP. 1988. A new species of Mimetes (Proteaceae) from the southern Cape. S. African J. Bot. 54: 636-639. [Copyright held by the South African Association of Botanists (1988); http://www.sciencedirect.com/science/journal/02546299] [CC BY]

Gamkaberg and Herold: Perdeberg. From: Manning, JC; Goldblatt, P. 2012. Proteaceae. In: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 657-681. South African National Biodiversity Institute, Pretoria. [CC BY]

Flowering time

April

Altitude

0 to 1021 m

Occurrence records map

This map contains point-based occurrences at different locations

iNaturalist: BODATSA: Data partners records:

Residence status

Occurrence in the Flora of Southern Africa (FSA) countries and South African provinces. Residence status indicates if a taxon is indigenous, endemic, naturalised or invasive in a specific region. This data is based on specimen records and literature

FSA

SA

BOT

NAM

ESW

LES

WC

EC

NC

FS

GA

KZN

LP

MP

NW

Absent

Indigenous

Endemic

Naturalised

Invasive

https://seis-sanbi.azureedge.net/anura/default/asset.do?preview=251186

Names and Sources

Accepted name
Mimetes chrysanthus Rourke

Published in: S. African J. Bot. 54(6): 636 (1988)

Synonym(s)

Classification

KINGDOM Plantae

SUBKINGDOM Phanerogamae

SUBFAMILY Proteoideae

GENUS Mimetes

19 results for Mimetes chrysanthus Rourke

Specimen records

Barcode: PRE0810846-0 Collector(s) & number: Vlok, JHJ, 1911 | 1988-3-31

South Africa, Western Cape, Calitzdorp: Gamka Nature Reserve, along slopes in upper part of catchment of Waterkloof.

General notes: Det: J. Vlok

Data Resource: BODATSA View record

Barcode: NBG0152944-0 Collector(s) & number: Yates, M, s.n. | 1994-4-

South Africa, Eastern Cape, Storms River village about 100 m south of turn-off from new national road, about 50 m east to road.

Data Resource: BODATSA View record

Barcode: NBG0223501-0 Collector(s) & number: Allardice, R, 1736 | 1988-4-13

South Africa, Western Cape, Klein Karoo. Gamka Mountain Nature Reserve. Ridge between Syferwater and Paddavluitjies kloof.

General notes: Local rare.

Data Resource: BODATSA View record

Barcode: NBG0144382-1 Collector(s) & number: Rourke, JP, 1907 | 1988-4-19

South Africa, Western Cape, Ladismith Dist.,Gemka Mountain Nature Reserve, head of Tierkloof,W/SW of Bakenskop.

Data Resource: BODATSA View record

Barcode: NBG0223499-0 Collector(s) & number: Rourke, JP, 2124 | 1998-4-16

South Africa, Western Cape, Wolwehuisfontein at western end of range. Gamka Mountain Farm.

Data Resource: BODATSA View record

Barcode: NBG0144382-2 Collector(s) & number: Rourke, JP, 1907 | 1988-4-19

South Africa, Western Cape, Ladismith Dist.,Gemka Mountain Nature Reserve, head of Tierkloof,W/SW of Bakenskop.

Data Resource: BODATSA View record

Barcode: NBG0246814-0 Collector(s) & number: Hitchcock, A, MSBP 3402 | 2007-8-23

South Africa, Western Cape, Original locality-Mountains N at Paarde poort immediately E of turn-off to Oudtshoorn. 33°52'30"S 22°22'30"E. [Grid centroid given - CFR2006].

Data Resource: BODATSA View record

Barcode: PRE0784656-0 Collector(s) & number: Rourke, JP, 1907 | 1988-4-19

South Africa, Western Cape, Ladismith Gamka Mountain Nature Reserve head of Tierkloof, W/SW of Bakenskop

Data Resource: BODATSA View record

Barcode: PRE0721962-0 Collector(s) & number: Rourke, JP, 1907 | 1988-4-19

South Africa, Western Cape, LADISMITH; GAMKA MOUNTAIN N. R.; HEAD OF TIERKLOOF W/SW OF BAKENSKOP

Data Resource: BODATSA View record

Observation records

Date: 4/20/2017 12:04:00 PM

Western Cape, South Africa

Data Resource: iNaturalist View record

Date: 4/5/2018 12:57:00 PM

Western Cape

Data Resource: iNaturalist View record

Date: 4/28/2011 12:00:00 AM

Western Cape, South Africa

Data Resource: iNaturalist View record

Date: 4/20/2007 12:00:00 AM

Western Cape, South Africa

Data Resource: iNaturalist View record

Date: 4/20/2012 12:00:00 AM

Western Cape

Data Resource: iNaturalist View record

Date: 4/12/2013 12:00:00 AM

Western Cape, South Africa

Data Resource: iNaturalist View record

Date: 4/12/2013 12:00:00 AM

Western Cape, South Africa

Data Resource: iNaturalist View record

Date: 4/16/2014 12:00:00 AM

Western Cape

Data Resource: iNaturalist View record

Date: 4/16/2014 12:00:00 AM

Western Cape

Data Resource: iNaturalist View record

Date: 4/16/2014 12:00:00 AM

Western Cape, South Africa

Data Resource: iNaturalist View record

Plant occurence records per dataset

Plant occurence records per year

Occurrence records map

This map contains point-based occurrences at different locations

iNaturalist: BODATSA: Data partners records:

2012

SERIES CHAPTER

Proteaceae Manning, JC; Goldblatt, P

In: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 657-681

South African National Biodiversity Institute, Pretoria

1988

PERIODICAL/JOURNAL

A new species of Mimetes (Proteaceae) from the southern Cape Rourke, JP

South African Journal of Botany 54: 636-639

No results found for Mimetes chrysanthus Rourke

Status

Status and criteria

VU

Assessor(s)

Plantae Coordinator

Part(s) of plant used Use(s) Reference

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