Results 171 to 180 of about 5,399 (203)

The Crassulaceae of Cajamarca, Peru

Haseltonia, 2009
Abstract: Eleven species of Crassulaceae were found in the Department of Cajamarca, northern Peru. (1) Echeveria eurychlamys was collected at its type locality for the first time since its description. (2) Geographical variants of Echeveria oreophila are described. (3) Echeveria cuencaensis, known previously only from Ecuador, is reported for the first
Nelson Cieza, Guillermo Pino
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Validation of the name Sedum triangulosepalum (Crassulaceae)

Phytotaxa, 2022
N ...
Hsu, Tian-Chuan, Chung, Shih-Wen
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Sinocrassula jiaozishanensis (Crassulaceae), a new species from Yunnan Province, China

Phytotaxa, 2022
Sinocrassula jiaozishanensis, a new species from China, is described and illustrated. Molecular analysis and morphological comparisons were carried out.
Jia-Guan Wang, Chao Chen, Yi Wang, Zhao‐Rong He   +3 more
semanticscholar   +1 more source

THE CHROMOSOMES OF PACHYPHYTUM (CRASSULACEAE)

American Journal of Botany, 1973
Eleven of the 12 species of Pachyphytum, all that are available, have n = 31–33 standard chromosomes, or a multiple. Accessory chromosomes were found in some or all collections of four species; some cells of one plant have more than 50 of them. Accessory chromosomes often occur in groups at metaphase I, corresponding to their origin from one to several
Charles H. Uhl, Charles H. Uhl, Reid Moran, Reid Moran   +3 more
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Targets and underlying mechanisms related to the sedative and hypnotic activities of saponins from Rhodiola rosea L. (crassulaceae).

Food & Function, 2021
Rhodiola rosea L. (Crassulaceae) are popularly used as a natural supplement for the treatment of insomnia and anxiety. Here, saponin extracts from R. rosea were investigated for their roles on relieving sleeplessness.
Yun-Fang Hao, Ting Luo, Zhongyu Lu, Chun-Yan Shen, Jian-Guo Jiang   +4 more
semanticscholar   +1 more source

Distribution of alkaloids and tannins in the Crassulaceae

Biochemical Systematics and Ecology, 1995
Alkaloid and tannin levels of 36 species of the Crassulaceae were compared. The taxa investigated were Crassula multicava, Echeveria venezuelensis, Pachyphytum compactum, Kalanchoe (two sop.), Bryophyllum daigremontianum, Sedum (23 spp.), Aeonium (four spp.) and Sempervivum (three spp.). Apart from the alkaloidal species of Sedum, only E. venezuelensis
Henk 't Hart, Roeland C. H. J. van Ham, Jan F. Stevens, Maya M. V. X. Van den Ent, Elizabeth T. Elema, Marjan Wildeboer, Jan H. Zwaving   +6 more
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Kalanchoe Adans. subg. Fernandesiae Gideon F.Sm. (Crassulaceae subfam. Kalanchooideae), a New Subgenus from Southern and South-Tropical Africa

Haseltonia. Yearbook of the Cactus and Succulent Society of America, 2021
: A new subgenus, Kalanchoe Adans. subg. Fernandesiae Gideon F.Sm. (Crassulaceae: Kalanchooideae), is described to accommodate the species of Kalanchoe with variously sized, round to paddle-shaped leaves, dense, club-shaped inflorescences, and cuneiform ...
Gideon F. Smith
semanticscholar   +1 more source

THE CHROMOSOMES OF THE SEMPERVIVOIDEAE (CRASSULACEAE)

American Journal of Botany, 1961
Uhl, Charles H. (Cornell U., Ithaca, New York.) Chromosomes of the Sempervivoideae (Crassulaceae). Amer. Jour. Bot. 48(2): 114–123. Illus. 1961.—Chromosome numbers are reported for 207 collections representing 68 of the ca. 95 species in this subfamily.
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The adventive species of Crassulaceae

Russian Journal of Biological Invasions, 2011
The results of analysis of adventive species of the Crassulaceae family from different regions of the Earth are presented. The highest number of alien and naturalized species of Crassulaceae is found in Australia (approximately 50 species). Most of these species grow in New Zealand, North America, and Europe.
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Ornamentation of the testa inSedum (Crassulaceae)

Plant Systematics and Evolution, 1980
A SEM investigation of the seeds of 40 European and 5 Asiatic species ofSedum revealed three fundamentally different types of ornamentation of the testa. The most prominent difference in the ontogeny of the seeds differing in ornamentation is the ovular envelope, which is a mucous membrane enclosing the ovules and young seeds and occurring only in ...
H. 't Hart, W. Berendsen
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