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Since 4 Aug 2013
Accepted Scientific Name: Haworthia cymbiformis (Haw.) Duval
Pl. Succ. Horto Alencon. 7; Haw. Syn. Pl. Succ. 93. Duval
Synonyms:
- Haworthia cymbiformis f. gracilidelineata (Poelln.) Pilbeam
- Haworthia bilineata var. gracilidelineata (Poelln.) Poelln.
- Haworthia gracilidelineata Poelln.
Haworthia cymbiformis (Haw.) Duval
Pl. Succ. Horto Alencon. 7; Haw. Syn. Pl. Succ. 93.
Synonymy: 33
- Haworthia cymbiformis (Haw.) Duval
- Aloe cymbaefolia Schrad.
- Aloe cymbiformis Haw.
- Aloe hebes Schult.f.
- Catevala cymbiformis (Haw.) Kuntze
- Aloe cymbifolia Schrad.
- Apicra cymbifolia (Schrad.) Willd.
- Haworthia concava Haw.
- Haworthia cuspidata Haw.
- Aloe cuspidata (Haw.) Schult.f.
- Catevala cuspidata (Haw.) Kuntze
- Haworthia cymbiformis var. angustata Poelln.
- Haworthia cymbiformis var. compacta W.Triebner
- Haworthia cymbiformis f. gracilidelineata (Poelln.) Pilbeam
- Haworthia bilineata var. gracilidelineata (Poelln.) Poelln.
- Haworthia gracilidelineata Poelln.
- Haworthia cymbiformis f. pallida hort.
- Haworthia cymbiformis f. planifolia (Haw.) Pilbeam
- Aloe planifolia (Haw.) Schult. & Schult.f.
- Haworthia cymbiformis var. planifolia (Haw.) Baker
- Haworthia planifolia Haw.
- Haworthia cymbiformis f. subarmata Poelln.
- Haworthia lepida G.G.Sm.
- Haworthia planifolia f. agavoides W.Triebner & Poelln.
- Haworthia planifolia f. alta W.Triebner & Poelln.
- Haworthia planifolia f. calochlora W.Triebner & Poelln.
- Haworthia planifolia var. exulata Poelln.
- Haworthia planifolia var. incrassata Poelln.
- Haworthia planifolia var. longifolia Poelln.
- Haworthia planifolia f. olivacea W.Triebner & Poelln.
- Haworthia planifolia var. poellnitziana Resende
- Haworthia planifolia f. robusta W.Triebner & Poelln.
- Haworthia planifolia var. sublaevis Poelln.
Haworthia cymbiformis var. incurvula (Poelln.) M.B.Bayer
Haworthia Handb. 124 (1976)
Synonymy: 2
- Haworthia cymbiformis var. incurvula (Poelln.) M.B.Bayer
- Haworthia incurvula Poelln.
Haworthia cymbiformis var. obtusa (Haw.) Baker
J. Linn. Soc., Bot. 18: 209 (1880)
Synonymy: 6
- Haworthia cymbiformis var. obtusa (Haw.) Baker
- Haworthia obtusa Haw.
- Haworthia cymbiformis var. umbraticola (Poelln.) M.B.Bayer
- Haworthia umbraticola Poelln.
- Haworthia umbraticola var. hilliana (Poelln.) Poelln.
- Haworthia hilliana Poelln.
Haworthia cymbiformis var. ramosa (G.G.Sm.) M.B.Bayer
Haworthia Revisited 60 1999.
Synonymy: 3
- Haworthia cymbiformis var. ramosa (G.G.Sm.) M.B.Bayer
- Haworthia cymbiformis f. ramosa (G.G.Sm.) M.B.Bayer
- Haworthia ramosa G.G.Sm.
Haworthia cymbiformis var. reddii (C.L.Scott) M.B.Bayer
Haworthia Revisited 61 (1999)
Synonymy: 2
- Haworthia cymbiformis var. reddii (C.L.Scott) M.B.Bayer
- Haworthia reddii C.L.Scott
Haworthia cymbiformis var. setulifera (Poelln.) M.B.Bayer
Haworthia Revisited 62 (1999)
Synonymy: 4
- Haworthia cymbiformis var. setulifera (Poelln.) M.B.Bayer
- Haworthia cymbiformis f. obesa (Poelln.) Pilbeam
- Haworthia cymbiformis var. obesa Poelln.
Haworthia cymbiformis var. transiens (Poelln.) M.B.Bayer
Haworthia Handb. 162 (1976).
Synonymy: 7
- Haworthia cymbiformis var. transiens (Poelln.) M.B.Bayer
- Haworthia planifolia var. transiens Poelln.
- Haworthia transiens (Poelln.) M.Hayashi
- Haworthia cymbiformis var. brevifolia W.Triebner & Poelln.
- Haworthia cymbiformis var. multifolia W.Triebner
- Haworthia cymbiformis f. multifolia (W.Triebner) Pilbeam
- Haworthia cymbiformis var. translucens W.Triebner & Poelln.
Haworthia cymbiformis f. variegata
Subspecies, varieties, forms and cultivars of plants belonging to the Haworthia cymbiformis group
Haworthia cuspidata Haw.: supposedly a cross between Haworthia retusa and Haworthia cymbiformis.- Haworthia cymbiformis (Haw.) Duval: has very plump and juicy leaves which are swollen with stored water. It comes from a wide area, and is very variable. Distribution: East London to Port Elizabeth, and Adelaide and Committees on the Fish River.
- Haworthia cymbiformis f. gracilidelineata (Poelln.) Pilbeam: has small tightly clustered, rosettes up to 3 cm in diameter. Leaves incurved almost completely tranlucent.
- Haworthia cymbiformis var. incurvula (Poelln.) M.B.Bayer: has narrow, incurved leaves, with rounded tranlucent teeth. Distribution: Grahamstown , Eastern Cape, South Africa.
- Haworthia cymbiformis var. obtusa (Haw.) Baker: Distribution: Fort Beaufort, Eastern Cape, South Africa.
- Haworthia cymbiformis f. pallida hort.: Pale form with yellowhis-green leves. Origin: Plants so-named are known only in cultivation.
- Haworthia cymbiformis f. planifolia (Haw.) Pilbeam: always grows at an acute angle, often with the rosette almost perpendicular; it usually grows in shade but reddens if in the sun.
- Haworthia cymbiformis var. ramosa (G.G.Sm.) M.B.Bayer: it is a shortly caulescent form with smaller rosettes.
- Haworthia cymbiformis var. reddii (C.L.Scott) M.B.Bayer: Distribution: Fort Beaufort, ), Eastern Cape, South Africa.
- Haworthia cymbiformis var. setulifera (Poelln.) M.B.Bayer
- Haworthia cymbiformis var. transiens (Poelln.) M.B.Bayer: has translucent green leaves 1,5-2,5 cm long each with 8-10 longitudinal stripes. In ful sun the leaves tend to take a red brown colouring. Margin finely toothed. Distribution: Baviaanskloof and Langkloof , Eastern Cape.
- Haworthia cymbiformis var. umbraticola (Poelln.) M.B.Bayer: has leaf-tips with large clear areas with dark green lines.
- Haworthia cymbiformis f. variegata: has soft, juicy and glassy (almost transparent) leaves which are nicely variegated with light-green and white longitudinal strips with varying amounts of variegation.
- Haworthia planifolia f. agavoides W.Triebner & Poelln.: has large flattened rosettes with very wide leaves.
Bibliography: Major references and further lectures
1) Urs Eggli “Illustrated Handbook of Succulent Plants: Monocotyledons” Springer, 2001
2) Charles L. Scott “The genus Haworthia (Liliaceae): a taxonomic revision” Aloe Books, 1985
3) Stuart Max Walters “The European Garden Flora: Pteridophyta, Gymbospermae, Angiospermae-Monocotyledons” Cambridge University Press, 1984
4) M. B. Bayer “The new Haworthia handbook” National Botanic Gardens of South Africa, 1982
5) John Pilbeam “Haworthia and Astroloba: A Collector's Guide” B. T. Batsford Limited, 1983
6) Gordon D. Rowley “The illustrated encyclopedia of succulents” Crown Publishers, 01/Aug/1978
7) Linda R. Berg “Introductory Botany: Plants, People, and the Environment” Cengage Learning, 02/Mar/2007
8) Dieter J. Von Willert “Life strategies of succulents in deserts: with special reference to the Namib desert” CUP Archive, 1992
9) A. J. van Laren “Succulents other than cacti” Abbey San Encino Press, 1934
10) Walther Haage “Cacti and succulents: a practical handbook” Dutton, 1963
11) Adrian Hardy Haworth “A new Arrangement of the Genus Aloe, with a chronological Sketch of the progressive Knowledge of that Genus, and of other succulent Genera.” In: Transactions of the Linnean Society of London. Band 7, Nummer 1, London 1804
Cultivation and Propagation: They are amongst the easiest Haworthias to grow. On account of their easy cultivation these plants are fairly common in collections and are more tolerant of injudicious watering than the others. They must be repotted frequently, because every year a part of their roots die and then rots in the pot. They are very responsive to differing cultural conditions both as regards colour, length and shape of leaves, rate of growth and size of plant.
Watering Needs: Water regularly in the growing season, but avoid water-logging and let dry between watering, they should never dry out completely during the rest period.
Frost Tolerance: Hardy to -1 (-5)°C.
Propagation: Seeds or (usually) offsets.
Sun Exposure: It prefers locations with diffuse sunlight or light shade, it can tolerate shade. It proliferates rapidly and should be exposed to at least some direct sunlight to prevent bloating and excessive softening of the plants, but shelter from direct sun during the hottest hours! Plants can have more remarkable colour under stress and if more exposed to direct sunlight.
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