General and physiological features of the vegetation of the more arid portions of Southern Africa: with notes on the climatic environment
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| Format: | Buch |
| Sprache: | English |
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Washington, DC
Carnegie Institution
1924
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| Schriftenreihe: | Publication / Carnegie Institution of Washington
354 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | VIII, 159 S. Ill. |
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| 245 | 1 | 0 | |a General and physiological features of the vegetation of the more arid portions of Southern Africa |b with notes on the climatic environment |c William Austin Cannon |
| 264 | 1 | |a Washington, DC |b Carnegie Institution |c 1924 | |
| 300 | |a VIII, 159 S. |b Ill. | ||
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| 490 | 1 | |a Publication / Carnegie Institution of Washington |v 354 | |
| 650 | 4 | |a Flore des régions arides - Afrique australe | |
| 650 | 4 | |a Flore désertique - Afrique australe | |
| 650 | 4 | |a Plantes - Afrique australe | |
| 650 | 4 | |a Écologie végétale - Afrique australe | |
| 650 | 4 | |a Botany |z South Africa | |
| 650 | 4 | |a Desert plants | |
| 650 | 4 | |a Plant ecology | |
| 651 | 4 | |a Südafrika (Staat) | |
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Datensatz im Suchindex
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| adam_text | GENERAL AMD PHYSIOLOGICAL FEATURES OF THE
VEGETATION OF THE MORE ARID PORTIONS
OF SOUTHERN AFRICA, WITH NOTES ON
THE CLIMATIC ENVIRONMENT
BY
WILLIAM AUSTIN CANNON
I
PUBLISHED BY THE CARNEGIE INSTITUTION OF WASHINGTON
WASHINGTON AUGUST, 1924 j ; •
CONTENTS
PAGE
Introduction 3
List of species and genera 10
General features of the climate of southern
Africa ; 11
Temperature l : 14
Rainfall in southern Africa _ 16
General conditions 16
Rainfall in the Little Karroo 24
Rainfall in the Great, or Central,
Karroo 25
Aberdeen and Graaf Reinet 25
Beaufort West 27
Laingsburg 27
Matjesfontein 28
Drought periods 30
Rainfall in the Protectorate of Southwest
Africa and in the northwestern part of
the Union 32
O okiep ~ 32
Warmbad 33
Keetmanshoop 33
Bethany 34
Gibeon 34
Windhoek 34
Gobabis 34
Karibib 34
Swakopmund 35
Luederitz Bay 35
Drought periods in the Protectorate f 35
Effective precipitation 36
Moisture of the air A 38
Seasonal variation in relative humidity 38
Winds 40
Evaporation 42
Ratio of rainfall to evaporation (P/E) 44
Atmometry in southern Africa 44
National Botanic Gardens 45
Grahamstown 47
Pietermaritzburg 48
Matjesfontein Y 48
Beaufort West 49
Swakopmund 51
Pretoria and Irene 52
Summary ^ 54
General features of the vegetation, espe
cially of the more arid portions of
southern Africa 55
Botanical regions of southern Africa 58
On characteristics of the vegetation in
portions of the Namib Desert and of
the Central Karroo 62
The Namib ^ 62
The Central Karroo 65
Beaufort West 65
Prince Albert Road 67
Matjesfontein 68
Notes on root habits 72
Summary 75
Some features of foliar structure 77
Notes on leaf structure 78
Aloe variegata -:-78~
Asparagus striatus 80
Protea neriifolia 81
Antizoma capensis 82
Galenia africana 83
Cadaba juncea 83
Grewia cana 85
Rhus viminalia 85
Notes on leaf structure—Continued PAGE
Rhus sp ; 86
Gymnosporia tjuxifolia 87
Cussonia spicata 87
discussion of
no
, Bauhinia marlothii
Sutherlandia frutescens
, Cotyledon panicula!ta
Stachys sp J 1
Aptosimum indivisum
Carissa ferox ; I
Ascjepias filiformis j(?)
Euclea undulata ,
Royena pallens j :
Eriocephalus sp :; •
Euryops lateriflorus
Pentzia virgata
Pteronia flexicaulis
Pteronia incana
Relhania squarrosa ,
Stoebe sp ;
General summary and1
leaf-structures :
Epidermis
Stomata J ;
Trichomes 1 I
Mesophyll ! v J
Conductive tissues
Notes on the origin of foliar structures
Proteaceaj Li J
Memspermacese ! J Ill
Aizoacesc ^• il Ill
Capparidaceie j 112
Tiliacese L 113
Anacardiacece i 113
Celastraceae I 114
Araliacese 1 114
Leguminosae 1 115
Papillionatse i 115
Cffisalpinae ! 116
Crassulaceaj I 116
Labiatse 117j;
Scropliulariace® 1 117|
Asclepiadaceffi ! : 118(|
Apocynace® 138:
Ebenaceae I J 119,;
Compositae ! 119
Some conclusions J 120,
Observations on the! foliar transpiring
power in winter and spring 122
Beaufort West J 123
Aloe schlechteri J 123
Gasteria disticlia J 124=1
Grewia cana 125
(?) • Gymnosporia buxifolia
Massonia latifolia
Matjesfontein
Aloe striata
Cotyledon coruscans
Cotyledon paniculata :
Eucalyptus globulus (?)
^Euryops lateriflorus I
Euclea undulata Jj|
Rhus sp and Rl viminalis
Protea neriifolia it
Namib U |j
Welwitschia mirabilis
Bauhinia marlothii
Summary i J!
Generalized summary
|
| adam_txt |
GENERAL AMD PHYSIOLOGICAL FEATURES OF THE
VEGETATION OF THE MORE ARID PORTIONS
OF SOUTHERN AFRICA, WITH NOTES ON
THE CLIMATIC ENVIRONMENT
BY
WILLIAM AUSTIN CANNON
I'''
PUBLISHED BY THE CARNEGIE INSTITUTION OF WASHINGTON
WASHINGTON AUGUST, 1924 j ; •
CONTENTS
PAGE
Introduction 3
List of species and genera 10
General features of the climate of southern
Africa ; 11
Temperature l : 14
Rainfall in southern Africa _ 16
General conditions 16
Rainfall in the Little Karroo 24
Rainfall in the Great, or Central,
Karroo 25
Aberdeen and Graaf Reinet 25
Beaufort West 27
Laingsburg 27
Matjesfontein 28
Drought periods 30
Rainfall in the Protectorate of Southwest
Africa and in the northwestern part of
the Union 32
O'okiep ~ 32
Warmbad 33
Keetmanshoop 33
Bethany 34
Gibeon 34
Windhoek 34
Gobabis 34
Karibib 34
Swakopmund 35
Luederitz Bay 35
Drought periods in the Protectorate f 35
Effective precipitation 36
Moisture of the air A 38
Seasonal variation in relative humidity 38
Winds 40
Evaporation 42
Ratio of rainfall to evaporation (P/E) 44
Atmometry in southern Africa 44
National Botanic Gardens 45
Grahamstown 47
Pietermaritzburg 48
Matjesfontein Y 48
Beaufort West 49
Swakopmund 51
Pretoria and Irene 52
Summary ^ 54
General features of the vegetation, espe
cially of the more arid portions of
southern Africa 55
Botanical regions of southern Africa 58
On characteristics of the vegetation in
portions of the Namib Desert and of
the Central Karroo 62
The Namib ^ 62
The Central Karroo 65
Beaufort West 65
Prince Albert Road 67
Matjesfontein 68
Notes on root habits 72
Summary 75
Some features of foliar structure 77
Notes on leaf structure 78
Aloe variegata -:-78~
Asparagus striatus \ ' 80
Protea neriifolia 81
Antizoma capensis 82
Galenia africana 83
Cadaba juncea 83
Grewia cana 85
Rhus viminalia 85
Notes on leaf structure—Continued PAGE
Rhus sp ; 86
Gymnosporia tjuxifolia 87
Cussonia spicata 87
discussion of
no
, Bauhinia marlothii
Sutherlandia frutescens
, Cotyledon panicula!ta
Stachys sp J ' 1
Aptosimum indivisum
Carissa ferox ; I
Ascjepias filiformis j(?)
Euclea undulata ,
Royena pallens j :
Eriocephalus sp :; •
Euryops lateriflorus
Pentzia virgata
Pteronia flexicaulis
Pteronia incana '
Relhania squarrosa ,
Stoebe sp ;
General summary and1
leaf-structures :
Epidermis
Stomata J ;
Trichomes 1 \ I
Mesophyll ! v J
Conductive tissues
Notes on the origin'of foliar structures
Proteaceaj Li J
Memspermacese ! J Ill
Aizoacesc ^• il Ill
Capparidaceie j 112
Tiliacese ' L 113
Anacardiacece i 113
Celastraceae I 114
Araliacese 1 114
Leguminosae '1 115
Papillionatse i 115
Cffisalpinae ! 116
Crassulaceaj I 116
Labiatse 117j;
Scropliulariace® 1 117|
Asclepiadaceffi ! : 118(|
Apocynace® 138:
Ebenaceae I'J 119,;
Compositae ! 119
Some conclusions J 120,
Observations on the! foliar transpiring
power in winter and spring 122
Beaufort West J 123
Aloe schlechteri J 123
Gasteria disticlia' J 124=1
Grewia cana ' 125
(?) • Gymnosporia buxifolia
Massonia latifolia
Matjesfontein
Aloe striata
Cotyledon coruscans
Cotyledon paniculata :
Eucalyptus globulus (?)
^Euryops lateriflorus 'I
Euclea undulata 'Jj|
Rhus sp and Rl viminalis
Protea neriifolia it
Namib U |j
Welwitschia mirabilis
Bauhinia marlothii
Summary ' i J!
Generalized summary |
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| spelling | Cannon, William Austin 1870-1958 Verfasser (DE-588)10194599X aut General and physiological features of the vegetation of the more arid portions of Southern Africa with notes on the climatic environment William Austin Cannon Washington, DC Carnegie Institution 1924 VIII, 159 S. Ill. txt rdacontent n rdamedia nc rdacarrier Publication / Carnegie Institution of Washington 354 Flore des régions arides - Afrique australe Flore désertique - Afrique australe Plantes - Afrique australe Écologie végétale - Afrique australe Botany South Africa Desert plants Plant ecology Südafrika (Staat) Carnegie Institution of Washington Publication 354 (DE-604)BV035415500 354 HEBIS Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=015758856&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Cannon, William Austin 1870-1958 General and physiological features of the vegetation of the more arid portions of Southern Africa with notes on the climatic environment Flore des régions arides - Afrique australe Flore désertique - Afrique australe Plantes - Afrique australe Écologie végétale - Afrique australe Botany South Africa Desert plants Plant ecology |
| title | General and physiological features of the vegetation of the more arid portions of Southern Africa with notes on the climatic environment |
| title_auth | General and physiological features of the vegetation of the more arid portions of Southern Africa with notes on the climatic environment |
| title_exact_search | General and physiological features of the vegetation of the more arid portions of Southern Africa with notes on the climatic environment |
| title_exact_search_txtP | General and physiological features of the vegetation of the more arid portions of Southern Africa with notes on the climatic environment |
| title_full | General and physiological features of the vegetation of the more arid portions of Southern Africa with notes on the climatic environment William Austin Cannon |
| title_fullStr | General and physiological features of the vegetation of the more arid portions of Southern Africa with notes on the climatic environment William Austin Cannon |
| title_full_unstemmed | General and physiological features of the vegetation of the more arid portions of Southern Africa with notes on the climatic environment William Austin Cannon |
| title_short | General and physiological features of the vegetation of the more arid portions of Southern Africa |
| title_sort | general and physiological features of the vegetation of the more arid portions of southern africa with notes on the climatic environment |
| title_sub | with notes on the climatic environment |
| topic | Flore des régions arides - Afrique australe Flore désertique - Afrique australe Plantes - Afrique australe Écologie végétale - Afrique australe Botany South Africa Desert plants Plant ecology |
| topic_facet | Flore des régions arides - Afrique australe Flore désertique - Afrique australe Plantes - Afrique australe Écologie végétale - Afrique australe Botany South Africa Desert plants Plant ecology Südafrika (Staat) |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=015758856&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV035415500 |
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