9. Tribe ANTHEMIDEAE

31b. Seriphidium junceum var. macrosciadium (Poljakov) Y.
Ling & Y. R. Ling, Bull. Bot. Res., Harbin 8(3): 123. 1988.
大头三裂叶绢蒿 da tou san lie ye juan hao
Artemisia macrosciadia Poljakov, Bot. Mater. Gerb. Bot.
ANTHEMIDEAE
747
Inst. Komarova Akad. Nauk S.S.S.R. 16: 423. 1954; A. juncea
var. macrosciadia (Poljakov) Poljakov.
Leaves 1.5–2 cm; distal lobes 4–6 mm. Involucre 3–4 mm
in diam.; phyllaries densely pubescent.
Rocky slopes, Gobi Desert, desert steppes; 800–1500 m. N Xinjiang
[Kazakhstan].
153. CROSSOSTEPHIUM Lessing, Linnaea 6: 220. 1831.
芙蓉菊属 fu rong ju shu
Shi Zhu (石铸 Shih Chu); Christopher J. Humphries, Michael G. Gilbert
Subshrubs, pubescent. Leaves alternate, narrowly spatulate or oblanceolate, apically few lobed or entire. Capitula disciform,
heterogamous, many, in a frondose raceme or panicle. Involucres hemispheric; phyllaries in 3 rows, outer ones herbaceous, inner
ones broadly scarious at margin. Receptacle hemispheric, epaleate. Marginal female florets in 1 row, tubular, 2- or 3-denticulate,
gland-dotted outside. Disk florets tubular, 5-lobed, gland-dotted outside. Anther obtuse at base, with apical oblong appendage;
style branches linear, apex truncate. Achenes obovoid, weakly 5-ribbed. Pappus coroniform, of small scales.
One species: China, Japan.
Molecular data (Watson et al., BMC Evolutionary Biology; http://www.biomedcentral.com/1471-2148/2/17/; accessed 10 Apr 2011) suggests
that Crossostephium is embedded within Artemisia.
1. Crossostephium chinensis (Linnaeus) Makino, Bot. Mag.
(Tokyo) 20: 33. 1906.
芙蓉菊 fu rong ju
Artemisia chinensis Linnaeus, Sp. Pl. 2: 849. 1753; Chrysanthemum
artemisioides (Lessing) Kitamura; Crossostephium
artemisioides Lessing; Tanacetum chinense (Linnaeus) A. Gray
ex Maximowicz.
Plants 10–40 cm tall, much branched in upper part, densely
gray-white pubescent. Leaves sessile, aggregated at apex of
branches; leaf blade narrowly spatulate or narrowly lanceolate,
2–4 × 0.4–0.5 cm, both surfaces densely gray-white pubescent,
base cuneate-attenuate, margin entire or sometimes apex 3- or
4-lobed, thick. Capitula rather small, disciform, ca. 7 mm in
diam., many, in a frondose raceme along branches. Involucres
hemispheric; phyllaries in 3 rows, outer and middle ones equal,
elliptic, herbaceous, abaxially densely gray-white pubescent,
apex obtuse or acute, inner ones oblong, small, abaxially subglabrous,
margin broadly scarious. Marginal female florets in 1
row, tubular, ca. 1.5 mm, gland-dotted outside, apex 2- or 3denticulate.
Disk florets many, tubular, densely gland-dotted
outside, 5-lobed. Pappus ca. 0.5 mm, coroniform, of small
scales. Fl. and fr. year-round.
Littoral plant found on raised coral outcrops. Fujian, Guangdong,
Taiwan, Yunnan, Zhejiang [Japan].
Crossostephium chinensis is rare and possibly threatened in the
wild but is often cultivated for ornamental and medicinal purposes. The
whole plant is used medicinally for treating infantile convulsions.
154. FILIFOLIUM Kitamura, Acta Phytotax. Geobot. 9: 157. 1940.
线叶菊属 xian ye ju shu
Shi Zhu (石铸 Shih Chu); Christopher J. Humphries, Michael G. Gilbert
Herbs, perennial, base somewhat woody, covered with fibrous leaf sheaths; indumentum absent or of medifixed hairs. Leaves
alternate, pinnatisect with long filiform lobes. Synflorescence a ± flat-topped cyme. Capitula small, heterogamous, disciform. Involucre
hemispheric; phyllaries in 4 rows. Receptacle conical, epaleate. Marginal florets female; corolla tapering above, apex minutely
4-toothed. Disk florets apparently bisexual but functionally male, apex 5-lobed, compressed into resinous mass. Anther apical
appendage triangular. Achenes obliquely obovoid, thinly walled, with 2 adaxial-lateral rows of myxogenic cells. Corona absent.
One species: China, Japan, Korea, Mongolia, Russia (Siberia).
Molecular data (Watson et al., BMC Evolutionary Biology; http://www.biomedcentral.com/1471-2148/2/17/; accessed 10 Apr 2011) place Filifolium
as the sister group to Artemisia subg. Dracunculus (Besser) Rydberg.
1. Filifolium sibiricum (Linnaeus) Kitamura, Acta Phytotax.
Geobot. 9: 157. 1940.
线叶菊 xian ye ju
Tanacetum sibiricum Linnaeus, Sp. Pl. 2: 1844. 1753;
Artemisia sibirica (Linnaeus) Maximowicz; Chrysanthemum
trinioides Handel-Mazzetti.
Herbs, perennial, 20–60 cm tall, roots robust, woody; base
densely clothed by old fibrous leaf sheaths; stems solitary or
few and tightly clustered, corymbosely branched in upper parts,
striate, glabrous. Basal leaves long petiolate; leaf blade obovate
or oblong in outline, ca. 20 × 5–6 cm, 2(or 3)-pinnatisect, both
surfaces green, glabrous; primary lateral segments many paired;
ultimate segments filiform, alternate. Synflorescence a flat-