Line drawing of Mairia crenata (Stokoe SAM56608, PRE): A, habit; B, involucral bracts; C, staminodes and style branches in ray floret; D, disc floret; E, involucral bracts of M. robusta (Wicht s.n. PRE806788, SAASVELD in PRE). Artist: G. Condy.

Line drawing of Mairia crenata (Stokoe SAM56608, PRE): A, habit; B, involucral bracts; C, staminodes and style branches in ray floret; D, disc floret; E, involucral bracts of M. robusta (Wicht s.n. PRE806788, SAASVELD in PRE). Artist: G. Condy.

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The endemic South African genus Mairia Nees (Asteraceae, Astereae) was revised. Six species are recognised. The species differ in their leaf shape, margins and indumentum, number of main veins, arrangement and shape of their involucral bracts, and the presence or absence of staminodes in ray florets. The taxonomic treatment includes a key to the sp...

Contexts in source publication

Context 1
... divided, apically unequal to almost equal, silvery or honeycoloured twin hairs; epicarp smooth. Pappus biseriate, outer series of reduced, delicate, free, barbellate or plumose bristles up to 3 mm long; inner series of plumose bristles up to 9 mm long, nude or barbellate basally and fused in a ring; pappus bristles yellowish white, persistent. Figs. 1 and 2. Chromosome number 2n = ...
Context 2
... broadened; epicarp smooth. Pappus biseriate, outer series of robust, shortly dentate to strongly barbellate, dirty white to straw-coloured, free bristles, 1-2 mm long, alternate with inner series; inner series of dirty white to straw-coloured, plumose bristles, 6-7 mm long, barbellate basally, longer than disc corolla, basally fused in a ring. Figs. 1A-D, 2A, E, G. Flowering time: February to December, after fire or in disturbed ...
Context 3
... cleft, apices almost equal in length; epicarp smooth. Pappus biseriate, outer series of free barbellate bristles, 0.5-3.5 mm long, white to straw-coloured, alternately arranged to inner series; inner series of plumose bristles 6.7-7.0 mm long, nude or barbellate and fused in a ring basally, white to straw-coloured, longer than disc florets. Fig. 10. Flowering time: July to November, after fire or in disturbed ...

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Citations

... The combination of herbaceous habit, moderately large capitula with purple rays, and plumose pappus bristles is diagnostic of the genus Mairia Nees amongst southern African Asteraceae, and this identification is confirmed by examination of the lectotype (Figure 2). This small genus of six species endemic to the Cape Floristic Region of southern Africa is defined by its geophytic, scapose habit with mostly broad, leathery leaves, femalefertile ray florets with white or pink to purple limb, and ribbed cypselas with a biseriate pappus, the outer series of reduced barbellate or plumose bristles and the inner of plumose bristles (Herman & Zinnecker-Wiegand 2016). ...
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Background: Ongoing systematic studies in the African flora necessitate periodic nomenclatural adjustments and corrections. Objectives: To effect requisite nomenclatural changes. Method: Relevant literature was surveyed and type material located and examined. Results: Nomenclatural corrections are published in Mairia Nees (Asteraceae) and Psilosiphon Welw. ex Goldblatt & J.C.Manning, nom illeg. (Iridaceae). Conclusions: Cineraria purpurata L. (1771) (Asteraceae) is recognised as the earliest name for Mairia hirsuta DC. (1836) and the new combination M. purpurata (L.) J.C.Manning is provided for the species. Psilosiphon Welw. ex Goldblatt & J.C.Manning (2015) (Iridaceae) is a later homonym for Psilosiphon Entwisle (1989). The replacement name Afrosolen Goldblatt & J.C.Manning is proposed and the necessary new combinations for the 16 taxa currently recognised in the genus are provided.
Article
The Pleurophyllum clade is one of two main clades within subtribe Celmisiinae (Astereae) and includes 10 species almost entirely restricted to New Zealand (one species also occurs in the Australian Macquarie Islands), with seven of them confined to Stewart Island/Rakiura and the outlying Chatham and subantarctic islands. The clade is defined by its purple to dark red cyathiform disc corollas, which are absent from the other members of Celmisiinae. A new generic taxonomy of the clade is presented here with the recognition of three genera: Pleurophyllum with three species, Damnamenia (monotypic), and Macrolearia , a new genus segregated from Olearia , which is described here to accommodate the six species and one hybrid previously known as the “macrocephalous olearias.” The main morphological differences between the three genera lie in the growth form, trichome types of leaves and disc corollas, morphology of the style branches, presence/absence of staminodes, and cypselae morphology. These morphological differences are also discussed within subtribe, tribe, and family contexts, and special consideration is given to the use of the “megaherb growth form” concept for Pleurophyllum . The allopatric distribution of the three recognized genera is also stressed. Seven new combinations: Macrolearia angustifolia , Macrolearia oporina , Macrolearia semidentata , Macrolearia chathamica , Macrolearia colensoi , Macrolearia lyallii , and Macrolearia × traillii , and five new synonyms are proposed, and four names are lectotypified. Taxonomic keys are provided for genera and species.