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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Ordo: Caryophyllales

Familia: Aizoaceae
Subfamilia: Ruschioideae
Tribus: Ruschieae
Genus: Ruschia
Subgenera: R. subg. Cymbifolia – R. subg. Maxima – R. subg. Multiflora – R. subg. Ruschia – R. subg. Sarmentosa – R. subg. Spinosa – R. subg. Stricta – R. subg. Tumidula – R. subg. Vaginata

Species: R. abbreviata – R. acocksii – R. acuminata – R. acutangula – R. aggregata – R. alata – R. albida – R. altigena – R. amicorum – R. ampliata – R. approximata – R. archeri – R. aspera – R. atrata – R. axthelmiana – R. barnardii – R. beaufortensis – R. bijliae – R. bipapillata – R. bolusiae – R. brakdamensis – R. breekpoortensis – R. brevibracteata – R. brevicyma – R. brevifolia – R. brevipes – R. britteniae – R. burtoniae – R. calcarea – R. calcicola – R. callifera – R. campestris – R. canonotata – R. capornii – R. caroli – R. caudata – R. cedarbergensis – R. centrocapsula – R. ceresiana – R. cincta – R. clavata – R. complanata – R. congesta – R. copiosa – R. costata – R. cradockensis – R. crassa – R. crassisepala – R. cupulata – R. curta – R. cymbifolia – R. cymosa – R. decumbens – R. decurrens – R. decurvans – R. dejagerae – R. deminuta – R. densiflora – R. depressa – R. dichroa – R. dielsiana – R. dilatata – R. divaricata – R. diversifolia – R. duthiae – R. edentula – R. elineata – R. erecta – R. esterhuyseniae – R. exigua – R. extensa – R. festiva – R. filipetala – R. firma – R. floribunda – R. foliosa – R. fourcadei – R. framesii – R. fredericii – R. fugitans – R. geminiflora – R. glauca – R. goodiae – R. gracilipes – R. gracilis – R. griquensis – R. grisea – R. hamata – R. haworthii – R. heteropetala – R. holensis – R. imbricata – R. impressa – R. inclusa – R. inconspicua – R. incurvata – R. indecora – R. indurata – R. intermedia – R. intricata – R. karrachabensis – R. karrooica – R. kenhardtensis – R. klipbergensis – R. kuboosana – R. langebaanensis – R. lapidicola – R. lavisii – R. laxa – R. laxiflora – R. laxipetala – R. leptocalyx – R. lerouxiae – R. leucosperma – R. lineolata – R. lisabeliae – R. macowanii – R. magnifica – R. mariae – R. marianae – R. maxima – R. middlemostii – R. misera – R. montaguensis – R. muelleri – R. muiriana – R. multiflora – R. muricata – R. namusmontana – R. nelii – R. neovirens – R. nieuwerustensis – R. nonimpressa – R. obtusa – R. odontocalyx – R. orientalis – R. pallens – R. parviflora – R. parvifolia – R. patens – R. patulifolia – R. pauciflora – R. paucipetala – R. perfoliata – R. phylicoides – R. pinguis – R. pollardii – R. primosii – R. pulvinaris – R. punctulata – R. pungens – R. putterillii – R. rariflora – R. recurva – R. rigens – R. rigida – R. rigidicaulis – R. robusta – R. rubricaulis – R. rupicola – R. ruralis – R. ruschiana – R. sabulicola – R. sandbergensis – R. sarmentosa – R. scabra – R. schollii – R. semidentata – R. semiglobosa – R. senaria – R. serrulata – R. sessilis – R. singula – R. solitaria – R. spinosa – R. staminodiosa – R. stricta – R. strubeniae – R. suaveolens – R. subpaniculata – R. subsphaerica – R. subteres – R. tardissima – R. tecta – R. tenella – R. testacea – R. tribracteata – R. triflora – R. truteri – R. tumidula – R. uitenhagensis – R. umbellata – R. uncinata – R. unidens – R. vaginata – R. valida – R. vanbredai – R. vanderbergiae – R. vanheerdei – R. vanniekerkiae – R. versicolor – R. vetovalida – R. victoris – R. virens – R. virgata – R. viridifolia – R. vulvaria
Source(s) of checklist:
Name

Ruschia Schwantes, Z. Sukkulentenk. 2: 186. 1926.
Type species: Ruschia rupicola (Engl.) Schwantes

References

Schwantes, M.H.G. (1926) Zeitschrift für Sukkulentenkunde 2: 186.

Links

Hassler, M. 2018. Ruschia. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2018. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2018 Jul. 13. Reference page.
International Plant Names Index. 2018. Ruschia. Published online. Accessed: Jul. 13 2018.
The Plant List 2013. Ruschia in The Plant List Version 1.1. Published on the internet. Accessed: 2018 Jul. 13.
Tropicos.org 2018. Ruschia. Missouri Botanical Garden. Published on the internet. Accessed: 2018 Jul. 13.
Global Biodiversity Information Facility. 2019. GBIF Backbone Taxonomy. Checklist dataset. Taxon: Ruschia. .

Ruschia is a genus of succulent plant, in the family Aizoaceae, indigenous to the dryer parts of southern Africa.
Description

Typical features of the genus include grey or blue-green succulent leaves, that are 3-sided or triangular in cross-section and are often covered with tiny darker transparent spots. Occasionally the leaves also have toothed margins.

Another common feature is the small, year-round, pink or white flower clusters.[1]

The genus can be distinguished with certainty though, by its seed capsules. As with most Aizoaceae, these are hygrochastic, with triangular valves that open and close with changes in humidity. The seed capsule valves of Ruschia have a little closing body to pull them closed when they dry again, and two keels on either side of the closing body, which expand and push open the valve. There is a covering membrane too, which partially covers the seeds, to prevent them all being washed away immediately.

In contrast, the seed chambers of Delosperma have no covering membrane, leaving the seeds entirely exposed when the capsule opens. The seed chamber valves of genus Lampranthus have only the two expanding keels while the closing body is present, but not visible, and Lampranthus valves also have wings on either side.
Species
Over 400 species are described, though many have subsequently been moved to the new genus Antimima. Species occur in South Africa and Namibia:

References

J. Manning: Field Guide to Fynbos. Struik, 2007. p.334.

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