OOIR: Observatory of International Research

Papers

(The median citation count of Bradleya is 0. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-06-01 to 2025-06-01.)

Article	Citations
Diversity in pollen structure in the dwarf succulent genus Conophytum N.E.Br. (Aizoaceae)	7
Interpopulational seed hydration memory does not affect seed germination of Xiquexique gounellei (F.A.C.Weber ex K.Schum) Lavor & Calvente subsp. gounellei (Cactaceae) under water deficit	6
A taxonomic update for Melocactus in Eastern Brazil	4
A note on the roots of Maihuenia (Cactaceae)	3
The discovery of dioecious Leuenbergeria lychnidiflora (DC.) Lodé (Cactaceae) in Guatemala	3
Ceropegia europaea (Guss.) Bruyns, (Apocynaceae; Asclepiadoideae; Ceropegieae) in Tunisia: occurrence and conservation	2
Further records of non-native succulents within Asparagaceae sensu lato as casual or naturalising aliens in Tunisia and North Africa	2
New Zealand's non-native flora – friends or foes?	2
A new species of Cumulopuntia (Cactaceae) from Peru	2
A reappraisal of succulent plant illustrations in early manuscripts 512 CE to the fifteenth century	1
A review of Melocactus printed illustrations from drawings and paintings 1571–1923	1
The Crassula atropurpurea complex from the southern and south-eastern Cape, a revised approach	1
THE AUTHORS	1
South African members of Euphorbia and their conservation status	1
Case studies of building collaborative partnerships for conservation of endangered and threatened cacti in Texas	1
Opuntia chiangiana (Cactaceae, Opuntioideae): A taxonomic re-evaluation and geographic distribution	1
An update on Agave and Furcraea (Agavaceae; Asparagaceae sensu lato) escaped and naturalised in Madeira	1
Conservation status of the genus Aloe L. (Asphodelaceae) in Zimbabwe	1
Cultivation as a conservation tool for cacti: review of the botanical evidence and a case study of Lophophora williamsii	1
Crassula inopina, a new cliff-dwelling succulent species from Worcester, Western Cape, South Africa	1
Further records of opuntioid cacti (Opuntieae, Opuntioideae, Cactaceae) from Tunisia with a key and updated checklist of the species of the genus Opuntia in northern Africa	1
×Rhipsatiora astra (Cactaceae). A new intergeneric hybrid between Rhipsalis cereuscula and Hatiora salicornioides which can exist in nature	1
Gasteria disticha var. marxii, a new dwarf variety from the Western Cape Province, South Africa	1
Identity of Kalanchoe ‘Fang’ and K. ‘Rose Leaf’, two cultivars derived from K. ×edwardii (Crassulaceae subfam. Kalanchooideae), with notes on aspects of interspecific hybridisation in the genus	1
Aloe inyangensis var. lutea, a new yellow-flowering variety from Nyanga (Inyanga), north-eastern Zimbabwe	1

Bulbine sceletium, a new cliff-dwelling Bulbine species (Asphodelaceae) from the Eastern Cape	1
Occurrence and phylogeny of the endangered Texas endemic Echinocereus fitchii subsp. albertii	1
Halogeton sativus (Amaranthaceae, Subfam. Salsoloideae) new to the flora of Tunisia and a third record for the African continent	1
Drosanthemum floribundum (Haw.) Schwantes: first record as a naturalised species in Algeria	1
Proposed molecular mechanism of ‘Cow Tongue’ (Opuntia species)	0
Editorial	0
A second species of Cylindropuntia (Engelm.) F.M.Knuth (Cactaceae), C. imbricata (Haw.) F.M.Knuth, naturalised in Zimbabwe	0
The succulents in The Magazine of Botany and Gardening (1833–1837): plagiarism in the early nineteenth century	0
The Conservation Committee of the British Cactus and Succulent Society	0
John Parkinson's succulents	0
Additions and corrections to Cacti of Eastern Brazil (3)	0
Flower morphs in Leptocereus scopulophilus (Cactaceae) and their reproductive success in Pan de Matanzas, Cuba	0
Discovery of the first confirmed locality of Tetragonia tetragonioides (Pall.) Kuntze (Aizoaceae) naturalising in Algeria	0
A review and update of the conservation status of Kalanchoe species (Crassulaceae subfam. Kalanchooideae) in the Flora of Southern Africa region	0
Bulbine vandermerwei, a new species (Asphodelaceae) from the Western Cape	0
BCSS Research Grants	0
Bulbine gondwanae N.H.G.Jacobsen & K.J.Koen. A new fynbos species (Asphodelaceae) from the Gondwana Game Reserve, Mossel Bay, Western Cape, South Africa	0
Casual, naturalised and invasive succulents of the Balearic Islands	0
The validity of the genus Airampoa Frič (Cactaceae, Opuntioideae) and designation of a neotype	0
Two new Bulbine species (Asphodelaceae) from the southern coastal zone of the Western Cape, South Africa	0
Arrojadoa luetzelburgioides, a new species allied to A. multiflora (Cactaceae) and a key to the recently expanded genus	0
Biotic and abiotic factors affect soil seed bank of cacti in the Caatinga, a Seasonally Dry Tropical Forest	0
Further additions and corrections to Cacti of Eastern Brazil	0
Coleocephalocereus superbus (Cactaceae), a new magenta-flowered species from Minas Gerais, Brazil	0
More Bulbine novelties (Asphodelaceae) from the southern part of the Western Cape Province, South Africa	0
Notes on distribution and conservation status of three Echinocereus (Cactaceae) species from northwest Mexico	0
Conserving Brazilian cacti: an update and future projects	0
Conservation status of the recently reinstated Aloe davyana, A. davyana var. subolifera, and A. labiaflava (Asphodelaceae subfam. Alooideae), three maculate aloes endemic to South Africa	0
Synopsis of medicinal succulent plants and their traditional uses in Algeria	0
Brazil's Micranthocereus polyanthus ninety years on	0
New species of Ruschieae (Aizoaceae)	0
Are endangered cacti safe in Brazil?	0
Pilosocereus novaromanus, a new species from Goiás, Brazil	0
Native and non-native succulent plants in Algeria	0
The succulents in the mysterious Voynich manuscript	0
Cactus endemism in major river basins of Eastern Brazil	0
Opuntia alta Griffiths – synonyms and description (Cactaceae, Opuntioideae)	0
A report on the extinction of a population of Coleocephalocereus pluricostatus Buining & Brederoo due to ecological imbalance	0
First record of Kalanchoe laxiflora as a casual and additional records of K. ×houghtonii (Crassulaceae) in Algeria	0
Conservation research of Lithops N.E.Br. in Namibia and South Africa – a multi-decade term project	0
BCSS Research Grants – Instructions for applicants	0
Philip Miller. Succulents, illustrations and forgotten books	0
The search for Crassula ×hybrida	0
Portulaca umbraticola (Portulacaceae), new to the succulent flora of North Africa and an updated key to Tunisian species and forms of the genus	0
Editorial	0
Melocactus and the Suringars of Leiden	0
Succulent conservation nearer home	0
Ex situ conservation of Cactaceae at the Gibraltar Botanic Gardens	0
The Glasgow Botanic Garden, William Jackson Hooker and succulent plants in the early nineteenth century	0
Palmer's Culture des Cactées – a rare cactus book	0

Integrative approaches to ex situ conservation of endangered Melocactus from Brazilian ecosystems	0
Current conservation status of the genus Kalanchoe (Crassulaceae) in Kenya, East Africa	0
A new succulent leafy tree-like Euphorbia (Euphorbiaceae) from Angola	0
Why is the stem of Cereus spegazzinii F.A.C.Weber marbled? A micromorphological investigation of the epidermis of selected Cereus species	0
Dinter's first Lithops	0
Flower visitors and efficient pollinators of Opuntia joconostle F.A.C.Weber. ex Diguet in Jalisco, Mexico	0
A new combination in Ceropegia sect. Orbea (Apocynaceae-Ceropegieae) for Somaliland	0
Cotyledon orbiculata var. oblonga from the south coast of the Western Cape, South Africa	0
Genus Mammillaria Haw. in the Yucatán Peninsula	0
Succulents in Le Jardin Fleuriste (1857–1890): a puzzle solved	0
Aloe maculata All. (Asphodelaceae subfam. Alooideae): a new addition to the alien flora of Algeria and North Africa	0
Environmental barriers to the distribution of the genus Lithops: present, past and future	0
Is there a relation between seed tolerance to environmental stresses and species distribution in Melocactus?	0
Early succulents in Japan and the first illustration of a cactus	0
Identification and typification of Opuntia aulacothele and a new combination in the genus Tephrocactus (Cactaceae, Opuntioideae)	0
A new subspecies of Crassula expansa Dryand., C. e. subsp. stellata, (Crassulaceae) from South Africa	0
Population structure and conservation status of Leptocereus nudiflorus, an endemic cactus from Cuba	0
New and revised taxa described in this issue	0
Native, naturalised and casual succulents in the British Isles	0
First record of the Southern African endemic Ruschia uncinata (L.) Schwantes (Aizoaceae) outside its native area with notes on its distribution in North Africa (Tunisia)	0
BCSS Research / Conservation Grants	0
The pollination ecology of Phemeranthus punae (Montiaceae) in southern Bolivia	0
Editorial	0
Trichocereus atacamensis (Phil.) W.T.Marshall & T.M.Bock (Cactaceae) shows decreasing germination fractions with seed age and differences in regeneration niche compared with a congeneric, sympatri	0
Editorial	0
BCSS Research Grants – Instructions for applicants	0
Endemic Crassulaceae in the Euro-Mediterranean biogeographical region needing protection. A preliminary checklist for conservation purposes	0
Peperomia subgenus Fenestratae: New taxa and nomenclatural changes	0
A review of the ecology and natural history of Kalanchoe (Crassulaceae subfam. Kalanchooideae) in southern Africa	0
Critical notes on escaped and naturalised cacti (Cactaceae) in the island of Madeira (Portugal)	0
Additions and corrections to Cacti of Eastern Brazil (4)	0
Activation of areole meristem using cytokinins and in vitro propagation of Selenicereus undatus (Haw.) D.R.Hunt (White-fleshed Dragon Fruit)	0
Notes on the Aloe archeri complex (Asphodelaceae) in Kenya, with a new combination	0
Conserving the genetic diversity of Brazilian leafy cacti on a domestic scale	0
A taxonomic revision of the genus Leptocereus (Cactaceae) in Haiti and the Dominican Republic	0
Hylotelephium maximum in Tunisia (Crassulaceae, Subfam. Sempervivoideae): a new alien for the African succulent flora	0