Tree Profiles

Tree Profiles
Tree Profiles
A schematic, simplified and pragmatic classification of fruits is presented. This arrangement is principally based on external morphological characters. All fruit types are clarified by a few examples.
Tree Profiles

Two species of the genus Alangium are occasionally cultivated in the botanic gardens of central europe. the following paper gives an introduction to the genus. the species A. chinense and A. platanifolium are presented according to BS’s own studies in words and pictures. the leaf shape is highly variable so it is not possible to differentiate between species using the leaf as the sole criterion. Both species can usually be identified with the aid of inflorescences, flowers and fruits.

Tree Profiles
In the first of an occasional series of articles on tree species thought to be extinct in the wild, CAROL GURNEY introduces Amherstia nobilis (Fabaceae), which is spectacular in flower.
Tree Profiles
Araucaria araucana has its natural distribution in the Andes Mountains between 37o and 40o S and between 600 and 1800 m.a.s.l. Around 1960 its distribution area was estimated at 250,000 - 300,000 ha, with 75% on the Chilean side of the...
The conference opened in Auckland on Thursday morning with Professor David de Laubenfels, who has described more of the currently-accepted species in the family than any other scientist, presenting a controversial paper on ‘New...
Following the RHS Woody Plants Committee meeting on the 18 September 2008 at Wisley, HUGH McALLISTER AND KEITH RUSHFORTH thought it might be helpful to draw together their personal conclusions on the Thibetica group within the genus...
Tree Profiles

The root cause of my interest in trees was my father’s love of all the trees that we grew up with in South Africa. He was a member of the Dendrology Society, and was financially very generous to all who shared this interest and were promoting the knowledge of trees. One of the great projects at that time, c. 1955, was the palm-sized National Tree List that listed all the indigenous treeswithauniquenumber. OnselectedtreesthroughouttheKrugerNational Park, and in all rest camps, numbers were attached. For the first time ever, the general public were able to identify and compare trees. Following in his footsteps, I spent many thousands of dollars donating tree name tags to game lodges, parks etc. throughout Africa.

Tree Profiles

The root cause of my interest in trees was my father’s love of all the trees that we grew up with in South Africa. He was a member of the Dendrology Society, and was financially very generous to all who shared this interest and were promoting the knowledge of trees. One of the great projects at that time, c. 1955, was the palm-sized National Tree List that listed all the indigenous trees with a unique number.  

Tree Profiles
GENNADY FIRSOV reflects on some of the outstanding species of trees that come into their own in the autumn at the St Petersburg Botanic Garden. 
Plant hunters have searched the globe travelling to far and distant places for millennia, but only in recent times have plant breeders realised the value of the earth’s germplasm. Vietnam, with an area of 330,000km2, contains at...
Tree Profiles
Following Chris Callaghan’s update on Cathaya in cultivation published in the 2008 yearbook, DICK VAN HOEY SMITH sent the following photos.
Tree Profiles
The discovery of the relict Cathaya argyrophylla or Cathay Silver Fir in a remote wilderness area of Kwangsi province (now Guangxi Zhuang Autonomous Region) in Southern China in May, 1955, created more than a ripple of excitement in...
Tree Profiles
Following the article published in the 2006 yearbook CHRIS CALLAGHAN has sent photos of Cathaya argyrophylla flowering in cultivation, outside China.
Tree Profiles

Researching the affinities of ‘Pseudocathaya’ featured in the previous yearbook (Callaghan 2011), has made me realise that there are a number of key facts regarding its progenitor, the endangered endemic relict Cathaya argyrophylla that are in error in the literature authored by numerous conifer authorities, and even in Flora of China of all places!

Tree Profiles

Researching the affinities of ‘Pseudocathaya’ featured in the previous yearbook (Callaghan 2011), has made me realise that there are a number of key facts regarding its progenitor, the endangered endemic relict Cathaya argyrophylla that are in error in the literature authored by numerous conifer authorities, and even in Flora of China of all places! 

Tree Profiles
FREDERIC WEBER has, since childhood, had the privilege of observing the cedar of Lebanon that has been growing at Le Vallon in Switzerland since the early nineteenth century. Here he lists the differences between Cedrus libani and C....
Tree Profiles
There is no doubt that the flowering dogwoods are among the most beautiful ornamental trees and shrubs. Gerd Krüssmann, co-founder of the IDS, once wrote that if he had to decide to grow just one species of the large-bracted dogwoods,...
Tree Profiles

Wood’s cycad is one of the most magnificent and rare plants of this family of ancient plants. It has been extinct in the wild for nearly a century. Only one four-stemmed male plant was ever found. It was first collected by John Medley Wood, director of the Natal Government Herbarium and leading Natal botanist. He was on a botanical expedition in Zululand in 1895, and found it when exploring Ngoye Forest (now spelt Ongoye). 

Tree Profiles

Wood’s cycad is one of the most magnificent and rare plants of this family of ancient plants. It has been extinct in the wild for nearly a century. Only one four-stemmed male plant was ever found. It was first collected by John Medley Wood, director of the Natal Government Herbarium and leading Natal botanist. He was on a botanical expedition in Zululand in 1895, and found it when exploring Ngoye Forest (now spelt Ongoye). 

Tree Profiles
Euonymus species are particularly prized for their decorative fruits. This work describes and illustrates (in water colour), the fruits and seeds of 30 commonly cultivated species found in Central European plant collections. The text...
Tree Profiles
In October 2010 a group of champion tree recorders, from all over Europe, met in Belgium, to exchange notes and discuss their findings. CHRISTOPHER CARNAGHAN1 reports on this international meeting, its purpose and aims, and makes an...
Tree Profiles
In the second of this occasional series on tree species extinct in the wild, CHARLES CRESSON, writes about the discovery of Franklinia alatamaha and its history in cultivation.
Tree Profiles
The walnuts have always excited interest for their combination of utility and beauty, but despite this, most species of Juglans remain little known in cultivation and poorly described in the literature, while specimens in many...
Tree Profiles
The Australian Bicentennial Arboretum celebrated its twentieth year in 2008 with the arrival of a new hybrid magnolia, appropriately herein named ‘Bicentennial’. In this article, CHRIS CALLAGHAN suggests that the...
Tree Profiles
On the IDS tour to Sikkim in May 2010 we found a few trees of Magnolia hodgsonii (Talauma hodgsonii), this very handsome low-altitude magnolia growing as widely spaced trees of about 12m high in the wild forest up the Teesta valley near...
Tree Profiles
In general magnolia seeds respond readily to a variety of rearing techniques, and experienced growers often evolve their own particular methods for getting good results. For those interested, the following advice from STEFAN COVER*...
Tree Profiles
As is so often the case, what was expected to be a leisurely pursuit of magnolia study in the tranquil atmosphere of the Australian Bicentennial Arboretum, turned out to be an exciting adventure into the wilderness of China’s remote...
Tree Profiles

The genus Acer is most frequently admired for its autumn colour and in some species its bark but one less well documented attribute is the diversity and beauty of its inflorescences. PETER GREGORY has been studying them for his new book on the identification of maples, What Maple is that?, and writes about the many different forms and colours the different species have. 

Tree Profiles

The genus Acer is most frequently admired for its autumn colour and in some species its bark but one less well documented attribute is the diversity and beauty of its inflorescences. Peter Gregory has been studying them for his new book on the identification of maples, What Maple is that?, and writes about the many different forms and colours the different species have. 

Last year CHRIS CALLAGHAN travelled to Vietnam for a reconnaissance of the tallest mountain in the country, in search of a rare endemic fir.

Tree Profiles
The IDS Araucariaceae symposium, held in Auckland, New Zealand, 14-17 March 2002, and the pre-symposium tour of Northland is described above by Timothy Waters. Here we give an account of the post-symposium tour to New Caledonia, which...
Tree Profiles
Of the 34 known species of the genus Nothofagus, nine are found in Chile and Argentina, three in New Zealand, and three in Australia; the remaining 19 come from New Guinea and New Caledonia. Nothofagus are commonly called Southern Beech and...
Tree Profiles
Among the many street trees in Vancouver are numerous parrotias including two cultivars not mentioned in last years “Tree of the year”. CLIVE JUSTICE gives further details.
Tree Profiles
An over-view of the genus Picea (Pinaceae) in China is given, with particular reference to the P. likiangensis group of species. This group is considered to include P. likiangensis (Franch.) E. Pritz. subspecies likiangensis, P....
Tree Profiles
The silver fir (Abies: Pinaceae) in the Yarlung tsangpo drainage of southeast Tibet (Xizang, China) is compared with other species in Abies section Pseudopicea Hickel emend Farjon & Rushforth subsection Delavayianae Farjon &...
Tree Profiles
The newly described white pine from northeast Mexico Pinus stylesii Frankis ex Businský is compared with other related pines, including P. flexilis James, P. reflexa (Engelm.) Engelm., P. strobiformis Engelm., P. veitchii...
Tree Profiles
All over Greece, from the very north to the extreme south, on the mainland and islands alike, in villages or country towns, one finds magnificent, age-old plane trees draped gracefully over churchyards or main squares. In the squares,...
Tree Profiles
CHRIS CALLAGHAN of the Australian Bicentennial Arboretum reports the finding of an intriguing new conifer in the Pinaceae related to the living fossil Cathaya argyrophylla from China and, pending valid publication, provisionally...

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