Acacia dissona - Revision history

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‎General Plant Info

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‎General Plant Info

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‎General Plant Info

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‎References

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‎General Plant Info

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‎References

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‎General Plant Info

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‎Identification

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‎Identification

@@ Line 2: / Line 2: @@
 [[File:16119ic1.jpg|right|250px]]
 Shrub 0.5–2 m high; branches often contorted. Branchlets ridged, appressed-puberulous. Phyllodes inclined to erect, straight, subterete or terete, 2–4 cm long, 1–1.5 mm wide, rather abruptly narrowed to a sharply pungent or mucronate to mucronulate tip, rigid, glabrous or pulvinus often puberulous adaxially, with numerous closely parallel, raised nerves that are sometimes paler than internerve spaces; stomata evident in internerve spaces; gland small; pulvinus normally slightly expanded at base. Inflorescences simple, 2 per axil; peduncles mostly 2–4 mm long, glabrous; heads globular, 5–6 mm diam. (fresh), 3–4 mm diam. (dry), 15–20-flowered, golden. Flowers 5-merous; sepals free. Pods linear, raised over and constricted between seeds, moderately curved, to 6 cm long and 2.5 mm wide, thin-crustaceous or thin-coriaceous, appressed-puberulous. Seeds longitudinal, oblong-elliptic, 2.5–4.5 mm long, 1.5 mm wide, glossy, dark brown; aril terminal, conical or broadly rounded and crested, pale yellow.<ref>Cowan, R.S., & Maslin, B.R. (1998). Nuystia, ''WESTERN AUSTRALIA’S JOURNAL OF SYSTEMATIC BOTANY'', 10(2), 210. Retrived from: http://florabase.dpaw.wa.gov.au/science/nuytsia/232.pdf</ref>
 Consists of 2 variants:

@@ Line 2: / Line 2: @@
 [[File:16119ic1.jpg|right|250px]]
 Shrub 0.5–2 m high; branches often contorted. Branchlets ridged, appressed-puberulous. Phyllodes inclined to erect, straight, subterete or terete, 2–4 cm long, 1–1.5 mm wide, rather abruptly narrowed to a sharply pungent or mucronate to mucronulate tip, rigid, glabrous or pulvinus often puberulous adaxially, with numerous closely parallel, raised nerves that are sometimes paler than internerve spaces; stomata evident in internerve spaces; gland small; pulvinus normally slightly expanded at base. Inflorescences simple, 2 per axil; peduncles mostly 2–4 mm long, glabrous; heads globular, 5–6 mm diam. (fresh), 3–4 mm diam. (dry), 15–20-flowered, golden. Flowers 5-merous; sepals free. Pods linear, raised over and constricted between seeds, moderately curved, to 6 cm long and 2.5 mm wide, thin-crustaceous or thin-coriaceous, appressed-puberulous. Seeds longitudinal, oblong-elliptic, 2.5–4.5 mm long, 1.5 mm wide, glossy, dark brown; aril terminal, conical or broadly rounded and crested, pale yellow.<ref>Cowan, R.S., & Maslin, B.R. (1998). Nuystia, ''WESTERN AUSTRALIA’S JOURNAL OF SYSTEMATIC BOTANY'', 10(2), 210. Retrived from: http://florabase.dpaw.wa.gov.au/science/nuytsia/232.pdf</ref>
 ===Flowering===

@@ Line 1: / Line 1: @@
 == General Plant Info ==
-[[File:16119ic1.jpg|right|500px]]
+[[File:16119ic1.jpg|right|250px]]
 Shrub 0.5–2 m high; branches often contorted. Branchlets ridged, appressed-puberulous. Phyllodes inclined to erect, straight, subterete or terete, 2–4 cm long, 1–1.5 mm wide, rather abruptly narrowed to a sharply pungent or mucronate to mucronulate tip, rigid, glabrous or pulvinus often puberulous adaxially, with numerous closely parallel, raised nerves that are sometimes paler than internerve spaces; stomata evident in internerve spaces; gland small; pulvinus normally slightly expanded at base. Inflorescences simple, 2 per axil; peduncles mostly 2–4 mm long, glabrous; heads globular, 5–6 mm diam. (fresh), 3–4 mm diam. (dry), 15–20-flowered, golden. Flowers 5-merous; sepals free. Pods linear, raised over and constricted between seeds, moderately curved, to 6 cm long and 2.5 mm wide, thin-crustaceous or thin-coriaceous, appressed-puberulous. Seeds longitudinal, oblong-elliptic, 2.5–4.5 mm long, 1.5 mm wide, glossy, dark brown; aril terminal, conical or broadly rounded and crested, pale yellow.<ref>Cowan, R.S., & Maslin, B.R. (1998). Nuystia, ''WESTERN AUSTRALIA’S JOURNAL OF SYSTEMATIC BOTANY'', 10(2), 210. Retrived from: http://florabase.dpaw.wa.gov.au/science/nuytsia/232.pdf</ref>

@@ Line 62: / Line 62: @@
 == References ==
+<references/>
 World Wide Wattle, ''Acacia dissona''. Retrieved from:http://www.worldwidewattle.com/speciesgallery/dissona.php
 FloraBase,  Acacia dissona R.S.Cowan & Maslin var. dissona. Retrieved from: http://florabase.dpaw.wa.gov.au/browse/profile/16119

@@ Line 1: / Line 1: @@
 == General Plant Info ==
 [[File:16119ic1.jpg|right|500px]]
-Shrub 0.5–2 m high; branches often contorted. Branchlets ridged, appressed-puberulous. Phyllodes inclined to erect, straight, subterete or terete, 2–4 cm long, 1–1.5 mm wide, rather abruptly narrowed to a sharply pungent or mucronate to mucronulate tip, rigid, glabrous or pulvinus often puberulous adaxially, with numerous closely parallel, raised nerves that are sometimes paler than internerve spaces; stomata evident in internerve spaces; gland small; pulvinus normally slightly expanded at base. Inflorescences simple, 2 per axil; peduncles mostly 2–4 mm long, glabrous; heads globular, 5–6 mm diam. (fresh), 3–4 mm diam. (dry), 15–20-flowered, golden. Flowers 5-merous; sepals free. Pods linear, raised over and constricted between seeds, moderately curved, to 6 cm long and 2.5 mm wide, thin-crustaceous or thin-coriaceous, appressed-puberulous. Seeds longitudinal, oblong-elliptic, 2.5–4.5 mm long, 1.5 mm wide, glossy, dark brown; aril terminal, conical or broadly rounded and crested, pale yellow.
+Shrub 0.5–2 m high; branches often contorted. Branchlets ridged, appressed-puberulous. Phyllodes inclined to erect, straight, subterete or terete, 2–4 cm long, 1–1.5 mm wide, rather abruptly narrowed to a sharply pungent or mucronate to mucronulate tip, rigid, glabrous or pulvinus often puberulous adaxially, with numerous closely parallel, raised nerves that are sometimes paler than internerve spaces; stomata evident in internerve spaces; gland small; pulvinus normally slightly expanded at base. Inflorescences simple, 2 per axil; peduncles mostly 2–4 mm long, glabrous; heads globular, 5–6 mm diam. (fresh), 3–4 mm diam. (dry), 15–20-flowered, golden. Flowers 5-merous; sepals free. Pods linear, raised over and constricted between seeds, moderately curved, to 6 cm long and 2.5 mm wide, thin-crustaceous or thin-coriaceous, appressed-puberulous. Seeds longitudinal, oblong-elliptic, 2.5–4.5 mm long, 1.5 mm wide, glossy, dark brown; aril terminal, conical or broadly rounded and crested, pale yellow.<ref>Cowan, R.S., & Maslin, B.R. (1998). Nuystia, ''WESTERN AUSTRALIA’S JOURNAL OF SYSTEMATIC BOTANY'', 10(2), 210. Retrived from: http://florabase.dpaw.wa.gov.au/science/nuytsia/232.pdf</ref>
 ===Flowering===

← Older revision		Revision as of 11:20, 11 January 2015
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	== References ==		== References ==
		+
		+	World Wide Wattle, ''Acacia dissona''. Retrieved from:http://www.worldwidewattle.com/speciesgallery/dissona.php
		+	FloraBase, Acacia dissona R.S.Cowan & Maslin var. dissona. Retrieved from: http://florabase.dpaw.wa.gov.au/browse/profile/16119

@@ Line 1: / Line 1: @@
 == General Plant Info ==
-Low-domed to narrowly obconic, dense shrubs 0.5-2 m tall, branches often ± contorted. Bark light
+Shrub 0.5–2 m high; branches often contorted. Branchlets ridged, appressed-puberulous. Phyllodes inclined to erect, straight, subterete or terete, 2–4 cm long, 1–1.5 mm wide, rather abruptly narrowed to a sharply pungent or mucronate to mucronulate tip, rigid, glabrous or pulvinus often puberulous adaxially, with numerous closely parallel, raised nerves that are sometimes paler than internerve spaces; stomata evident in internerve spaces; gland small; pulvinus normally slightly expanded at base. Inflorescences simple, 2 per axil; peduncles mostly 2–4 mm long, glabrous; heads globular, 5–6 mm diam. (fresh), 3–4 mm diam. (dry), 15–20-flowered, golden. Flowers 5-merous; sepals free. Pods linear, raised over and constricted between seeds, moderately curved, to 6 cm long and 2.5 mm wide, thin-crustaceous or thin-coriaceous, appressed-puberulous. Seeds longitudinal, oblong-elliptic, 2.5–4.5 mm long, 1.5 mm wide, glossy, dark brown; aril terminal, conical or broadly rounded and crested, pale yellow.
-grey, finely longitudinally fissured at base of trunk, smooth on branches. Branchlets more or less
-ridged, with very short, appressed, straight to shallowly-curved hairs. Stipules persistent, triangular.
-Phyllodes sub-terete or terete, 2-4 cm long, 1-1.5 mm wide, l:w = 15-30, rigid, inclined to erect,
-straight or nearly so, green, glabrous or pulvinus often puberulous adaxially; apex more or less sharply
-pungent or only mucronate to mucronulate; nerves numerous, closely parallel, raised, sometimes paler
-than inter-nerve spaces; stomata raised in inter-nerve spaces, sometimes appearing as tubercles;
-pulvinus 0.5-2 mm long, sometimes not well differentiated, usually expanded at base; gland small,
-near middle of blade on adaxial surface. Peduncles 2 in each axil, 2-4(5) mm long, glabrous; heads
-globular, golden, 5-6 mm diam. (fresh), 3-4 mm diam. (dry), 15-20-flowered; bracteoles linear.
-Flowers 5-merous. Sepals c. 1/2 as long as petals, free, linear, ciliolate apically. Petals free, elliptic,
-glabrous. Pods linear, raised over and variably constricted between seeds, to 6 cm long and 2.5 mm
-wide, thin-crustaceous or thin-coriaceous, moderately curved, somewhat loosely and irregularly
-reticulate-nerved, ± appressed-puberulous. Seeds longitudinally arranged in pods, oblong-elliptic,
-.5-4.5 mm long, 1.5 mm wide, 1 mm thick, dark-brown, glossy or semi-glossy; aril terminal, conical
-or broadly rounded and crested, 1/2-2/3 as long as seed, pale yellow.
 ===Flowering===

@@ Line 44: / Line 44: @@
 Comprises two closely related varieties:
-===Acacia dissona var. dissona===
+===''Acacia dissona'' var. dissona===
 [[Phyllodes]] subterete, 2–4 cm long, contracted to sharply pungent apex; nerves and internerve spaces often uniform in colour; stomata sometimes tuberculate. Pods distinctly constricted between the seeds, sparingly appressed-puberulous. Seeds 4.5 mm long; aril long-conical.
@@ Line 50: / Line 50: @@
 [[File:Dissona var dissona.jpg]]
-===Acacia dissona var. indoloria===
+===''Acacia dissona'' var. indoloria===
 [[Phyllodes]] terete, mucronate to mucronulate, innocuous to coarsely pungent; nerves paler than internerve spaces in mature phyllodes. Pods scarcely constricted between seeds, sparsely appressed-puberulous, at least between seeds. Seeds 2.5–3.5 mm long, with a broadly obtuse, crested aril.

← Older revision		Revision as of 11:17, 11 January 2015
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	== Identification ==		== Identification ==
		+
		+	Comprises two closely related varieties:
		+
		+	===Acacia dissona var. dissona===
		+	[[Phyllodes]] subterete, 2–4 cm long, contracted to sharply pungent apex; nerves and internerve spaces often uniform in colour; stomata sometimes tuberculate. Pods distinctly constricted between the seeds, sparingly appressed-puberulous. Seeds 4.5 mm long; aril long-conical.
		+
		+	Disjunct, occurring from Merredin- Southern Cross S to near Ongerup with outliers in the Coorow-Wanarra area (c. 250 km due NW of Merredin) and the Norseman area (c. 350 km due NE of Ongerup). Grows in a variety of soils, often clay, in eucalypt woodland and mallee.
		+
		+	[[File:Dissona var dissona.jpg]]
		+	===Acacia dissona var. indoloria===
		+
		+	[[Phyllodes]] terete, mucronate to mucronulate, innocuous to coarsely pungent; nerves paler than internerve spaces in mature phyllodes. Pods scarcely constricted between seeds, sparsely appressed-puberulous, at least between seeds. Seeds 2.5–3.5 mm long, with a broadly obtuse, crested aril.
		+
		+	Disjunct, occurring at Ballidu- Mollerin (c. 75- 145 km due E of Moora), Bruce Rock- Muntadgin (Muntadgin is c. 45 km due NE of Bruce Rock) and Frank Hann Natl Park (located 30- 110 km ENE of Lake King). Grows in sand, sandy loam and loam, mostly in open mallee.
		+
		+	[[File:Dissona var indoloria.jpg]]
		+
		+	The differences separating the two varieties comprising this species are indicated in the key. They are obviously closely related, with most of the differences in the pods and seeds.
		+
		+	Also resembles [[Acacia kalgoorliensis]] which has longer phyllodes with protracted, long-spinose tips.

	== Alkaloid content ==		== Alkaloid content ==