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리톱스 빌레티 C199-Lithops villetii subs. kennedyi C199식물/들꽃-번행초과(Aizoaceae) 2017. 11. 18. 08:06
리톱스 빌레티 C199
Lithops villetii subs. kennedyi C199
75 km SSE of Pofadder, South Africa
Lithops villetii
subsp. villetii: C194, C195
subsp. deboeri: C230A, C231, C258
subsp. kennedyi: C123, C197, C199, C200A, C228, C229A
http://users.skynet.be/fhoes/rsasucculents/lithops_plantlist.htm
Habitat: Lithops villetii subs. kennedyi is native to dry winter rainfall areas where it grows in barren minerals terrains clinging to life in this harsh landscape. They live a precarious existence hidden beneath outcrops of pinkish grey-white calcrete. They grow almost completely buried in the ground with only the upper truncated portion of the thick, succulent leaves visible. L. villetii subs. kennedyi resist attacks from herbivorous predators by mimicking the local stone formations, and is almost impossible to distinguish from their surroundings until they erupt into vivid daisy-like white flowers. Colours of the background reddish brown, greyish brown, with some grey, pink, black, white, pinkish grey-white with some grey, dark brown, black. When they are found, it is usually due to their large and brightly coloured flowers flowers.
Description: Lithops villetii subs. kennedyi is a fairly easy to identify subspecies of Lithops villetii. Distinguished from the latter by its truncate profile, narrow and much indented margins and generally reddish-brown colour; uniform and usually easily identifiable. They are generally smaller and greyer in colour than the mainly reddish-brown forms occurring in all other localities.
Habit: It is grows solitary or forming clumps of up to 4 or more heads, mostly 2 and conforms to the typical Lithops morphology: two thick, fleshy windowed leaves separated by a crack from which a yellow flower appears. The windowed part allows light into the inner portion of the leaf where the process of photosynthesis is carried out.
Bodies (paired leaves): Truncate-cordate in profile, medium to klarge, 28-36 mm in diameter up to 3 cm high and about 20-25 mm wide at the fissure. Fissure shallow, 5-10 mm. Lobes conjunct or very slightly divergent. Face flush, elliptic-reniform; lobes equal-unequal. The upper surface is slightly rugose, variable in colour, usually greenish yellow, dark grey-green or brownish, slightly convex, while the sides are light greyish-brown or light brown. Windows usually partially occluded, to completely open, opaque greenish or brownish grey or greyish green, brown, orange-brown or purplish brown. Islands are numerous, small, usually distinct but irregular, occasionally reduced to hazy flecks, opaque grey, bluish or pinkish grey, or greyish pink, brown, orange-brown or red. Margins distinct, somewhat in relief, very irregularly dentate or sinuate with numerous peninsulas some colour of islands . Channels mostly fairly narrow, irregular, various shades of opaque greenish or brownish grey or greyish green, brown, orange-brown or purplish brown. Dusky dots rarely visible even with a lens, very obscure. Rubrications absent. Shoulders sometimes grey or bluish grey; sometimes this colour extends also onto the peninsulas and outer islands.
Flowers: Daisy-like, diurnal, small to medium, 2-3 cm diameter. Petals satiny white.
Blooming season: Autumn (in habitat blooms in April).http://www.llifle.com/Encyclopedia/SUCCULENTS/Family/Aizoaceae/13640/Lithops_villetii_subs._kennedyi_C199_75_km_SSE_of_Pofadder,_South_Africa대단히 어렵다.
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