A new species o A gy eia (Con ol ulaceae)
om he sou he n Wes e n Gha s, India
Yada P.B.S.1, Ka uppusamy S.1*& P.S.S. Richa d2
1Depa men o Bo any, Bo anical Resea ch Cen e, The Madu a College (Au onomous), Madu ai – 625011,
Tamil Nadu, India (A ilia ed wi h Madu ai Kama aj Uni e si y)
2Depa men o Bo any, Mad as Ch is ian College (Au onomous), Tamba am, Chennai – 600059, Tamil Nadu, India
*E-mail: [email p o ec ed]
Abs ac : A gy eia manjolaiensis (Con ol ulaceae), a
new species om he sou he n Wes e n Gha s o Tamil
Nadu, is desc ibed and illus a ed. De ailed desc ip ion,
pho opla es, and dis ibu ion map a e p o ided.
In o ma ion on popula ion s a us and ecology is also
p esen ed o acili a e he iden i ica ion and conse a ion
o he species.
Keywo ds: Endemic species, Mo ning glo y, Tamil
Nadu, Taxonomy
A isdason & D. Mai y (Shalini e al., 2020) and A.
sha adchand ajii Lawand & Shimpale (Lawand &
Shimpale, 2021).
A ecen molecula phylogene ic s udy on he
gene a A gy eia and Ipomoea (Muñoz-Rod íguez
e al., 2019) sugges ed he me ging o A gy eia
unde Ipomoea. Howe e , bo h gene a ha e al eady
been well es ablished as dis inc en i ies by se e al
au ho s (Cla ke, 1883; Cooke, 1908; Oos s oom &
Hoogland, 1953; Lawand, 2019; Shalini e al., 2020;
Lawand & Shimpale, 2021). In ligh o his, we
ha e chosen o ollow he adi ional classi ica ion,
ea ing A gy eia as a sepa a e genus. This dis inc ion
is suppo ed by clea mo phological di e ences and
a numbe o p ominen ea u es ha di e en ia e
A gy eia om i s allied gene a (Lawand & Shimpale,
2021). Addi ionally, he wo gene a a e clea ly
sepa a ed by hei geog aphical dis ibu ion and
cy ogene ic e idences (Sampa hkuma & Ayyanga ,
1981; Mabbe ley, 2018).
Ma e ials and Me hods
Du ing he lo is ic explo a ions o he sou he n
Wes e n Gha s o Tamil Nadu in India, he au ho s
collec ed some in e es ing specimens o he genus
A gy eia om Manimu ha wa e alls, on he way
o Manjolai, Ti unel eli dis ic , Tamil Nadu.
The specimens we e examined using ele an
axonomic li e a u es (Hooke , 1885; Gamble, 1925;
Ka hikeyan e al., 2009; Naya e al., 2014; Lawand
e al., 2019; Shalini e al., 2020; Lawand & Shimpale,
Recei ed: 18.09.2024; Re ised & Accep ed: 08.11.24
Published Online: 31.12.2024
In oduc ion
The genus A gy eia Lou . (Con ol ulaceae) is
na i e o con inen al Asia, almos all axa p ima ily
dis ibu ed ac oss he opical and sub opical
egions o sou heas Asia, China, and he Indian
subcon inen , comp ising app oxima ely 143
species (S aples & T aipe m, 2017; T aipe m &
Suddee, 2020; POWO, 2024). Among hese, only
ou species a e con ined o Madagasca wi h
disjunc dis ibu ion (De oin, 2001). In India, he
genus is ep esen ed by 40 species o which 17
a e endemic (Lawand, 2019; Lawand e al., 2019).
A o al o 24 axa ha e been epo ed om he
Wes e n Gha s among which13 a e endemic o
he egion (Naya e al., 2014). Recen ly, Lawand
e al. (2019) conduc ed a axonomic e ision o
A gy eia om India. Since hen, couple o new
species we e desc ibed om he Wes e n Gha s
o India: A. lakshmina asimhanii S. Shalini, Sujana,
Vol. 34(5): 483–487 (2024)
ISSN: 0971-2313 (P in edi ion)
ISSN: 2582-2438 (Online edi ion)
h ps://dx.doi.o g/10.22244/ heedea.2024.34.05.09
Rheedea
Jou nal o he Indian Associa ion o Angiospe m Taxonomy
RESEARCH ARTICLE
484
A new species o A gy eia om India
Taxonomic ea men
A gy eia manjolaiensis Ka upp., Bha a h &
P.S.S.Rich., sp. no .
Fig. 1 & 2
Mo phologically simila o A. ulgens Choisy bu can be
easily dis inguished om 2–2.5 cm long pe iole ( s. 3–7
cm long), a co da e lamina base ( s. ounded), a hai y
abaxial su ace o he lamina ( s. glab ous), 12 seconda y
eins ( s. 18–22), 10–12- lowe ed in lo escence ( s.
5–7- lowe ed), 3 b ac s ( s. 2), subequal o unequal
sepals ( s. equal) and a co olla ube ha is pale pu ple a
he base and milky whi e a he h oa ( s. da k pu ple
h oughou ). A de ailed mo phological compa ison is
p o ided in Table 1.
Type: INDIA, Tamil Nadu, Ti unel eli,
Manimu ha alls, on he way o Manjolai, abo e
684 m, 20.08.2023, Ka uppusamy, Bha a h &
Richa d 3121 (holo SGH!; iso MCCH! MH!).
A woody climbing sh ub, g ows up o 24 m o
mo e. S ems e e e, g een, se iceous. Lea es
do si en al, al e na e; pe ioles e e e, 2–2.5
cm long, g een, se iceous as in s em, shallowly
g oo ed; lamina o a e, 5.6–6.8 × 4–4.5 cm, base
co da e, apex acu e o acumina e, ma gins en i e,
cilia e, pa ially hai y adaxially, densely sil e y
shiny omen ose abaxially, seconda y eins 12
pai s, aised p ominen ly below. In lo escence an
axilla y, 10–12- lowe ed, capi a e cyme; peduncles
2.5 cm long, g een, hai y like s em, sligh ly longe
han pe ioles. B ac s 3; ou e b ac oblong-
lanceola e, 2–2.5 × 0.6 cm; inne wo lanceola e o
alca e, 1.5–1.8 × 0.4 cm, densely se iceous ou side,
excep o e lapped a eas, hai y inside, minu ely
5–9 eined inside, ma gins en i e, apex acu e.
Flowe s subsessile; pedicels c. 0.2 cm long, hai y.
Sepals 5, o a e-lanceola e, subequal o unequal;
ou e wo na ow, 1–1.2 × c. 0.4 cm; inne h ee
b oad, c. 0.6 × 0.5 cm, ma gins en i e, hyaline, apex
acu e, glab ous inside, se iceous all o e ou side
excep o e lapped a eas. Co olla in undibuli o m,
c. 5 cm long, c. 5 cm ac oss, pu ple a he base,
milky whi e nea h oa ; ube da k pu ple inside,
hai y on mid-pe aline bands. S amens 5, unequal,
3 sho , 2 long; longe s amens c. 1.5 cm long;
sho e s amens 0.8–1 cm long; ilamen s whi e,
2021) bu could no be iden i ied. The e o e, he
specimens we e compa ed wi h ype specimens and
digi al images in online he ba ia da abases (CAL,
CALI, E, GDC, K, L, LINN, MH, P and SGH).
A e c i ical obse a ions on specimens deposi ed
a all abo e he ba ia, i is concluded ha he p esen
species does no ma ch wi h any desc ibed species
o he genus A gy eia hence, i is desc ibed he e as
new. De ailed mo phological obse a ions we e
eco ded and desc ibed using e ms o Been je
(2016). The he ba ium specimens we e p epa ed
and deposi ed in he SGH, The depa men o
Bo any, The Madu a College, Madu ai. Au ho s
ha e gene a ed he dis ibu ion map using QGIS
e . 3.32.3 (QGIS De elopmen Team, 2022), based
on geocoo dina es o collec ion locali ies. The A ea
o Occupancy (AOO) and Ex en o Occu ence
(EOO) we e es ima ed using GeoCAT (Bachman e
al., 2011), and a p o isional conse a ion s a us was
assessed acco ding o he IUCN Red Lis Ca ego ies
and C i e ia (IUCN, 2024).
Fig 2
. Map showing he dis ibu ion o A gy eia manjolaiensis Ka upp.
Bha a h & P.S.S.Rich. (Map p epa ed by P. Bha a h Simha Yada using
QGIS 3.32.3).
485
Yada e al.
Fig. 1.
A gy eia manjolaiensis Ka upp., Bha a h & P.S.S.Rich.:
a
. A lowe ing wig;
b
. Lea –abaxial iew;
c
. Lea –adaxial iew;
d
. Lea abaxial
su ace–Closeup iew;
e
. Lea – ip;
. In lo escence;
g
. B ac s;
h
. Flowe – on iew;
i
. Sepals;
j
. Flowe –side iew;
k
. Flowe cu open showing
s amens and pis il;
l
. S amens; mPis il (Pho os P.S.S. Richa d)
486
A new species o A gy eia om India
486
wi h ew glandula ichomes a he base; an he s
basi ixed, c. 0.4 cm long. O a y o oid-ellipsoid,
pale g een, enci cled by annula ing; s yle single, c.
1 cm long; s igma biglobose, whi e. F ui a globose
be y, 1.5–2 cm ac oss, opped by emnan o s yle
base, yellow when ipened. Seeds 4, ellipsoid o
obo oid, 1.5–2 × 3.5–6 mm, whi e, glab ous.
Flowe ing & F ui ing: Flowe ing om July o
Sep embe ; ui ing om Augus o No embe .
Ecology: The species occu s in opical d y
deciduous and semi-e e g een o es s a
ele an ions o 450–600 m, inhabi ing exposed
a eas o he o es s and climbing o e ees.
Some o he associa ed axa include No hopegia
heyneana (Hook. .) Gamble, Semeca pus
anaca dium L. . (Anaca diaceae), Ca eya a bo ea
Roxb. (Lecy hidaceae), Cleis an hus a anco ensis
Jabl. (Phyllan haceae), Filicium decipiens (Wigh
& A n.) Thwai es (Sapindaceae), G ewia ilii olia
Vahl (Mal aceae), Cappa is di e si olia Wigh
& A n. (Cappa aceae), S obilan hes pa i olia
J.R.I.Wood (Acan haceae), Eugenia calcadensis
Bedd. (My aceae), Te minalia anoegeissiana Ga e
& Boa w . (Comb e aceae), and Tec ona g andis
L. . (Ve benaceae).
Dis ibu ion: P esen ly known only om he ype
locali y o Manimu ha wa e alls, on he way o
Manjolai, Ti unel eli dis ic , Tamil Nadu, India
(Fig. 2).
E ymology: The new species is named a e
he ype locali y, Manjolai es a e in Kalakadu-
Mundan hu ai Tige Rese e o sou he n
Wes e n Gha s.
Conse a ion s a us: Fewe han 25 ma u e
indi iduals o A gy eia manjolaiensis, wi h an
ex en o occu ence (EOO) o 30 km2, a ea o
occupancy (AOO; AOO based on use de ined
cell wid h [3 km]) 63 km2 ha e been ound a
he ype locali y. Acco ding o he la es IUCN
conse a ion s a us assessmen guidelines (IUCN
S anda ds and Pe i ions Commi ee, 2024 e .
2024-1), A gy eia manjolaiensis is p o isionally
assessed he e as C i ically Endange ed (CR).
Acknowledgmen s
The au ho s ex end hei g a i ude o he Head o
O ice, Bo anical Su ey o India, Sou he n Regional
Ci cle, Coimba o e, o g an ing pe mission o
consul he he ba ium and lib a y. Special hanks
a e due o D . V. Ra ichand an (Sou he n Regional
Ci cle, Coimba o e, BSI), D . R.K. Singh and
Table 1. Compa ison o mo phological cha ac e s be ween A gy eia manjolaiensis and A. ulgens
Cha ac e s A. manjolaiensis sp. no . A. ulgens Choisy
Pe ioles 2–2.5 cm long, wi hou any glands 3–7 cm long, wi h wo
p o ube ances like glands a poin
o a achmen wi h lamina
Lamina Co da e a base; hai y abaxially Rounded a base; glab ous
Seconda y eins 12, g een in young lea es 18–22, pu ple in young lea es
In lo escence Capi a e cyme, 10–12- lowe ed Dicho omously b anched cyme,
5–7-s lowe ed
Peduncles Equalling o longe han pe ioles Sho e han he pe ioles
B ac s 3, oblong-lanceola e 2, linea -oblong
Sepals Subequal o unequal, 1–1.2 × 0.4 – 0.5 cm Equal, 0.5–0.7 × c. 1 cm
Co olla c. 5 cm long, 5 cm ac oss; ube pu ple a
he base, h oa milky whi e
2.5–3.5 cm long, 2–2.5 cm ac oss;
ube pu ple h oughou
487
Yada e al.
D . A. Ra iki an (A id Zone Regional Cen e,
Jodhpu , BSI), o hei aluable commen s on he
iden i y o he new species; Ms. K. Sonali, Resea ch
Schola , Depa men o Bo any, M.H. Shinde
Maha idyalaya, Tisangi, Maha ash a, o he
assis ance in ob aining e e ences and he cu a o s
o BSI, CAL and K o p o iding digi al images o
ype specimens. Au ho s a e also hank ul o he
o es o icials o Tamil Nadu, o he necessa y
pe missions o conduc he ield wo k.
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