Clés de détermination des bambous

[Eric]

On en a parlé plusieurs fois...

Je ne retrouve rien de vraiment complet. Y-t-il un post complet là-dessus où faut il en construire un ?


Je mets les liens que je trouve en attendant mieux :
http://www.bambousdefrance.fr/genres/cle.genres.htm
viewtopic.php?f=22&t=1336
viewtopic.php?f=27&t=5264

[devlie]

dans le dernier post que tu cite, johnbonsai nous propose de nous communiquer ces clefs d'identification. C'est vrai que ce serait bien utile, mais je pense que ces clefs sont faites aussi pour des botanistes : les termes utilisés et la qualification des elements sont trop precis pour des "pauvres amateurs" comme moi.
Par contre je suis etonnée car je pensait que le sillon etait un element important d'identification du boo, au moins un element discriminatoire avec = phyllo, sans = pas phyllo, mais je n'ai pas vu cet element dans les clefs proposées en francais.

[elran]

j'ai trouvé un super site fournissant des clefs d'identification, mais n'étant pas chez moi, je ne pourrais poster le lien qu'a mon retour. c'est un site américain, mais je me ferrais surement une traduction (enfin peut être avec votre aide... ).

[Eric]

j'ai trouvé un super site fournissant des clefs d'identification, mais n'étant pas chez moi, je ne pourrais poster le lien qu'a mon retour. c'est un site américain, mais je me ferrais surement une traduction (enfin peut être avec votre aide... ).

super !

C'est pas celui-là des fois ?
http://www.bambooweb.info/

[elran]

non, par contre je viens de le retrouver, et c'était un site Anglais en fait!

Key to genera of bamboos cultivated in Europe & the US from vegetative characters



1a. Rhizomes pachymorph, having root-bearing internodes thicker than the culm; culms usually in single clumps.

2a. Tropical to subtropical bamboos (1--)5--30 m; mid-culm branches initially 3(--9); mid-culm culm sheath blades broad, length usually less than twice width, or maximum breadth similar to rest of sheath; leaf blades with minor veins parallel.

3a. Mid-culm branches initially ca. 3(--7), dissimilar, central often strongly dominant.

4a. Culms dense to loose, 1--20 m; leaf blades usually broad, to 10 cm wide; culm sheaths deciduous.

5a. Culms usually lightly waxy at first; basal branching usually well developed

..... Bambusa

5b. Culms usually with dark or thick waxy scurf at first; basal branching usually absent or restricted.

6a. Culms sheaths very broad, base encircling culm without substantial overlap, pubescence dense and soft; culms often striped

..... Gigantochloa

6b. Culms sheaths narrow to broad, base encircling culm without substantial overlap, pubescence varied; culms not striped

..... Dendrocalamus

4b. Culms very dense, ca. 5--15 m; leaf blades very narrow, less than 2 cm wide, culm sheaths persistent

..... Thyrsostachys

3b. Mid-culm branches initially 5--9, subequal

..... Schizostachyum



2b. Temperate to subtropical bamboos 3--12 m tall; culm sheath blades narrow, length more than twice width; mid-culm branches initially 5--9(--100); leaf blades with minor leaf veins parallel or tessellate.

7a. Mid-culm branches initially 20--100; culm internodes solid

..... Chusquea

7b. Mid-culm branches initially 5--20; culm internodes hollow.

8a. Leaf blades with minor veins all parallel.

9a. Culm sheath interior surface distally scabrous; branches initially ca. 20--30, subequal

..... Drepanostachyum

9b. Culm sheath interior surface glabrous; branches initially ca. 10--20, central dominant

..... Himalayacalamus

8b. Leaf blades with prominent tessellation of minor veins.

10a. Mid-culm branches initially ca. 5; culm sheath blade erect, contiguous with sheath apex; mid-culm buds with 2 initials visible inside

..... Thamnocalamus

10b. Mid-culm branches initially (5--)7--10; culm sheath blade erect or reflexed, articulated with sheath; mid-culm buds with more than 2 initials visible inside.

11a. Rhizomes consistently long-necked or short and long-necked, spreading bamboos with culms solitary or in several clumps

..... Yushania

11b. Rhizomes consistently short-necked, culms in a single clump.

12a. Culms usually smooth, wax absent or deciduous

..... Fargesia

12a. Culms usually finely ridged, wax persistent

..... Borinda



1b. Rhizomes leptomorph, root-bearing internodes thinner than the culm; culms solitary or in many connected clumps.

13a. Mid-culm branches consistently 2, unequal, rarely with a smaller central third branch

..... Phyllostachys

13b. Mid-culm branches not consistently 2, initially 1--9.

14a. Mid-culm branches 4--5, less than 10 cm, without any further branching; leaves usually solitary

..... Shibataea

14b. Mid-culm branches to more than 10 cm, often branching further, leaves in groups.

15a. Culm sheath blade narrow and very small, less than 1 cm; culms often quadrangular; nodes often swollen, brittle, often with thorns; culm bud prophyll very narrow or absent; mid-culm branches initially 3(--5)

..... Chimonobambusa

15b. Culm sheath blade broad or more than 1 cm; culms not quadrangular; nodes slightly swollen or level, not brittle, without thorns; culm bud prophyll broad; mid-culm branches initially 1--9.

16a. Dwarf bamboos, less than 1(--1.5) m tall.

17a. Leaf blade margins more or less bleached in winter, terminal blade often angled from shoot axis, blades usually not variegated

..... Sasa

17b. Leaf blade margins not or only slightly bleached in winter, terminal blade parallel to shoot axis, blades often variegated

..... Pleioblastus

16b. Medium-stature to tall bamboo, more than 1 m tall.

18a. Mid-culm branches initially 5--9.

19a. Culm buds initially closed

..... Pleioblastus

19b. Culm buds initially open.

20a. Culms smooth

..... Semiarundinaria

20b. Culms rough

..... Bashania

18b. Mid-culm branches initially 1--3(--5).

21a. Mid-culm branches 1(--3); branch and leaves often very large relative to culm size.

22a. Leaf blade margins bleached in winter, terminal blade often deflexed from shoot axis; culm buds initially closed; mid-culm branch 1

..... Sasa

22b. Leaf blade margins not bleached in winter, terminal blade parallel to shoot axis; culm buds initially open or closed; mid-culm branches 1(--3)

23a. Culm buds usually initially open; mid-culm branches 1(--3); culm internodes usually distally yellow-brown scurfy

..... Indocalamus

23b. Culm buds all initially closed; mid-culm branch 1; culm internodes glabrous

..... Pseudosasa subgen. Pseudosasa

21b. Mid-culm branches (1--)2--7; branches and leaves small to medium relative to culm size.

24a. Mid-culm branches consistently 3; culm buds initially closed.

25a. Central branch somewhat larger, branches spreading; supra-nodal ridge prominent

..... Sinobambusa

25b. Branches subequal, erect; supra-nodal ridge obscure

..... Pseudosasa subgen. Sinicae

24b. Mid-culm branches 2--7; culm buds initially open.

26a. Leaf blades smooth, well separated; culm sheaths late-deciduous; native to Himalayas & s w China

..... Sarocalamus

26b. Leaf blades ribbed, closely spaced; culm sheaths very persistent; indigenous to s e USA

..... Arundinaria


lien:
http://bamboo-identification.co.uk/html ... enera.html

même site, mais plus juste les clefs d'identification:
http://bamboo-identification.co.uk/html ... ation.html

voilà, plus qu'a traduire

[tedlemagnifique]

Je déterre ce vieux post, en 4 ans, a-t-on évolué sur les clés d'identification???