Avinoam Danin © Species New to Science discovered and described by Avinoam Danin Ferula daninii...

Avinoam Danin © Species New to Science discovered and described by Avinoam Danin

Ferula daninii Zohary

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Origanum ramonense, endemic to a small area of the Negev Highlands, confined to smooth-faced limestone

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Origanum ramonense In the fieldIn the greenhouse

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Origanum ramonense

Nahal Lotz

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Drawing byEsther Hoover

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A hard rock outcrop during a light shower (ca. 1 mm/hr). The shiny faces are sites where a continuous water film

developed on the rock and run-off started

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Rock outcrops and an asphalt road where runoff started

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Urginea maritima at a soil pocket in smooth-faced rock outcrop covered with epilithic lichens (P=100 mm)

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A cross-section in a limestone covered with an epilithic lichen which protects it from the

destructive energy of the rain drops

epilithic lichen

rock

Avinoam Danin © Water in a depression at a rock-outcrop in the desert. Soil pockets should be regarded as such depressions

filled with soil

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A soil pocket in the desert. The marked plants are typical Mediterranean surviving due to efficient run-off from the

exposed smooth rock (P=80 mm)

Umbilicusintermedius

Urospermumpicroides

Avinoam Danin ©Bufonia ramonensis, endemic to one slope at the Negev Highlands, in the same rock outcrop of the

two previous photos

Avinoam Danin © Gebel Halal in N Sinai (P=80-100 mm), where Juniperus phoenicea trees survived in smooth-faced rocks. They penetrated

the desert in a moist period more than 40,000 years ago. A branch of the marked tree displays 865 annual rings

Avinoam Danin ©A Juniperus phoenicea branch, 865 years old; seems to be the oldest tree recorded in the Middle East so far

Avinoam Danin © Juniper trees in a wadi draining the large rocky surface attain considerable size, also by being naturally protected from becoming fire wood. The burning

wood “explodes” and makes sparks which may endager the Bedouin tent

Avinoam Danin ©Juniperus phoenicea branches resemble those of Cupressus, but

the small cones look like red fruits

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Eastern Crete where Juniperus phoenicea shrubs are accompanied by Sarcopoterium and Coridothymus

Avinoam Danin © Large rock outcrops of Gebel Halal support additional special plants among the Juniper trees

Origanum isthmicumdiscovered here is endemic to an area less than 5x5 km at thismountain chain

Avinoam Danin © Origanum jordanicum, the closest relative of O. isthmicum

Avinoam Danin ©

Distribution of Origanum sect. Campanulatocalyx

1. O. dayi2. O. ramonense3. O. isthmicum4. O. punonense5. O. petraeum6. O. jordanicum

Avinoam Danin © In a study of plant adaptations in desert dunes, several species of the Boraginaceae were

discovered, having the rare ability to produce root-borne shoots. The new shoots arrest mobile

sand thus leading to the re-covering of the exposed roots in areas of sand deflation

Heliotropium digynumMoltkiopsis ciliata

Avinoam Danin © A gentle slope of a sandy area south of Dimona supports several Boraginaceae. It is

facing south-west, the main direction of strong winds in winter

Avinoam Danin © A species new to science, described as Anchusa negevensis confined to that slope and was not found anywhere else. It produces root-borne

shoots

Avinoam Danin ©Following DNA analyses of the family the species was transferred to another genus, and it is now

Hormuzakia negevensis

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A group of at least 7 individuals of H. negevensis that are possibly connected by their roots

Avinoam Danin © New root-borne shoots of H. negevensis

Avinoam Danin ©Flowers and fruits of H. negevensis

Avinoam Danin © Theucrium capitatum a common species of Israel and its neighbouring countries

Avinoam Danin © Hair-types of the taxa related to Teucrium leucocladum, compared to those of T. capitatum

T. capitatum

subsp. leucocladum

var. glandulosum

subsp. sinaicum

subsp. jordanicum

Avinoam Danin ©Distribution of the taxa related to Teucrium leucocladum

Avinoam Danin © A list of taxa described by- or named after Avinoam Danin

• Origanum ramonense Danin 1967• Origanum isthmicum Danin 1969• Reaumuria negevensis Zohary & Danin 1970• Ferula daninii Zohary 1972• Brassica deserti Danin & Hedge 1973• Ifloga rueppellii (Fresen.) Danin 1973• Kickxia macilenta (Decne.) Dani 1973• Micromeria serbaliana Danin & Hedge 1973• Onopordum turcicum Danin 1974• Kickxia judaica Danin 1977• Portulaca oleracea L. subsp. nitida Danin & Baker (+7

subspecies) 1978• Amygdalus ramonensis Danin 1980

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• Leopoldia longipes (Boiss.) Losinsk. subsp. negevensis Feinbrun & Danin 1986

• Minuartia sinaica (Boiss.) Danin 1987• Polygala negevensis Danin 1987• Silene alexandrina (Asch.) Danin 1987• Onopordum blanchei (Eig) Danin 1988• Origanum petraeum Danin 1990• Origanum punonense Danin 1990• Kickxia petrana Danin 1991• Allium daninianum Brullo, Pavone & Salmeri 1992

Phillyrea latifolia L. subsp. daninii Valdes 1992

• Anchusa negevensis Danin 1995• Cyperus sharonensis Danin & Kukkonen 1995• Origanum jordanicum Danin & Kuenne 1996

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• Micromeria danaensis Danin 1997• Rubia danaensis Danin 1997• Silene danaensis Danin 1997• Teucrium leucocladum Boiss. subsp. jordanicum Danin

and subsp. sinaicum Danin 1997• Satureja nabateorum Danin & Hedge 1998• Artemisia jordanica Danin 1999• Pycnocycla saxatilis Danin, Hedge & Lamond 2000• Bufonia ramonensis Danin 2001• Arundo mediterranea Danin 2004

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Portulaca nicaraguensis (Danin & H.G. Baker) Danin 2006Portulaca africana (Danin & H.G. Baker) Danin 2006Portulaca tuberculata (Danin & H.G. Baker) Danin 2006 Portulaca impolita (Danin & H.G. Baker) Danin 2006Portulaca papillato-stellulata (Danin & H.G. Baker) Danin 2006Portulaca canariensis Danin & Reyes-Betancort 2006

25 Summary: 35 species and 5 subspecies new to science; 2 species and 1 subspecies named after A. Danin (additional one Cyanobacterium,

probably Mathea daninii Friedmann, is in press since 1984) .

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