Baumkunde Forum

pgs hat geschrieben: An: Durian
Verfasst am: Do 04.Feb 2016 21:46
Titel: Re: Sophora tetraptera var. microphylla

Habe gerade in Flora of New Zealand die Beschreibungen der beiden Arten angeschaut:
Bei S. tetraptera sollen die Blättchen 1,5 bis 3,5 cm lang sein und das Blatt hat 10 - 20 Paare von Blättchen.

Bei S. microphylla sind die Blättchen kleiner, etwa 0,5 bis 0,7 (bis 1) cm lang und das
Blatt hat 20 - 40 Paare von Blättchen.

Auf deinen Bildern konnte ich nirgends mehr als 13 Paare zählen, danach sollte es wohl eher tetraptera sein!
________________
beste Grüße von Holger/PGS

Bean hat geschrieben:A Chilean sophora of the Edwardsia group is sometimes identified as S. tetraptera. It is not that species but near to, and perhaps not specifically distinct from, S. microphylla, from which it differs in its fewer leaflets (fifteen to seventeen pairs), in the slightly smaller flowers with the standard shorter than the wings, and in not going through a juvenile phase. It is a tree to about 25 ft high, occupying much the same habitats as its New Zealand relative, and is more widely distributed than the Chilean endemic S. macrocarpa, ranging from Maule province in central Chile through the forest region as far as Chiloe Island and the mainland opposite (Muñoz, Flora Silvestre de Chile (1966), pp. 191-2 and t. 38).

Early in the last century a sophora of unknown provenance grew in the Edinburgh Botanic Garden, where it was hardier than S. tetraptera or S. microphylla. It was named Edwardsia macnabiana by Graham in 1838 and portrayed in the Botanical Magazine two years later. Graham suspected that it might be no more than a seedling variation of S. tetraptera, but it seems to have agreed very well with the Chilean form or ally of S. microphylla. It is in cultivation from seeds collected by Comber in the Chilean Andes in 1927.

LCV hat geschrieben:Sophora tetraptera war auch mein erster Versuch. Aber die Größe der Blättchen kann man den Fotos nicht entnehmen.

S. t. ist auf jeden Fall der National Tree of New Zealand, nur nebenbei bemerkt. Auf Google-Bilder ist auch kein Verlass.

Ich weiß nicht, wie das absolut sicher zu klären wäre.

Gruß Frank

Features
Tree up to 15 m tall, trunk 0.6-1 m diam., often several arising from ground. Branches spreading, sometimes pendulous. Branchlets clad in golden yellow or grey tomentum. Juvenile plants not divaricating or flexuous, exhibiting an erect growth, non-interlacing habit from germination. Leaves 100-150(-220) mm, imparipinnate, moderately hairy, hairs, straight, appressed. Leaflets 10-20(-25) pairs, 15-35(-40) x 5-8 mm, well spaced, never overlapping or crowded, narrowly ovate to elliptic-oblong. Inflorescences racemose with up to 10 flowers. Calyx 10-20 x 10-15 mm, cupulate. Flowers golden-yellow, keel petal blade 20-50(-60) x 10-16(-18 ) mm, wing petal blade 25-50(-62) x 10-16 mm, standard petal blade 30-35(-42) x 18-30(-35) mm; petals with distinct claws 6-8 mm long. Fruit (100-)200(-280) mm long, broadly 4-winged, brown, with 6-12 or more seeds. Seeds 6.5-9(-10) x 6-7.5 mm, oblong, elliptic to orbicular, yellow to light yellow-brown.

Similar Taxa
Easily distinguished from all other Kowhai species by the very large and wide grey-green leaves, with the leaflets 15-35 mm x 5-8 mm, ovate to elliptic -oblong, densely clad in silky, straight, appressed hairs. From the members of the S. microphylla complex it can also be distinguished by the flowers whose standard is distinctly less than the length of the wings.