Thanks a lot, Lalithamba ji. ---------- Forwarded message --------- From: Lalithamba Avadhanam <[email protected]> Date: Mon, 20 Jul 2020 at 11:45 Subject: Re: [itpmods:14262] Confusion- Cordia myxa L. and Cordia dichotoma G.Forst. To: <[email protected]>
yes Garg ji your observation is very correct, hence both are treated same only in some outdated floras it is given separately On Mon, Jul 20, 2020 at 11:32 AM J.M. Garg <[email protected]> wrote: > Dear members, > There has been a confusion between these species. We have included all our > observations under Cordia dichotoma > <https://sites.google.com/site/efloraofindia/species/a---l/b/boraginaceae/cordia/cordia-dichotoma> > . > Let us explore whether they are the same or different. If different, what > are the differences? > POWO > <http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:114380-1> > and Catalogue of Life > <https://www.catalogueoflife.org/col/details/species/id/70398f573b07c0eeb9fc0bd3049abe0b> > consider > them to be different., although at some point Catalogue of Life considered > them to be the same as per details at GBIF > <https://www.gbif.org/species/5341290> (which relies on Catalogue of > Life). > I could not find the difference between the two except at Flora of > Pakistan > <http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=107975>. Here > are the keys: > 2 (1) > <http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=107975#KEY-1-1> > *Calyx* not ribbed, *glabrous* 2 Cordia myxa > <http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200018955> > + *Calyx* ribbed, *minutely pubescent to tomentose* (3) > <http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=107975#KEY-1-3> > for > other species including Cordia dichotoma > <http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200018953> > Let us examine the detailed descriptions: > > *Cordia myxa* L.: > Flora of Pakistan > <http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200018955>: > A deciduous tree 3-5 m tall. Young shoots and branches with a rusty > pubescence, glabrate at length. Leaves 6-12.5 x 43-8.2 cm, suborbicular. > elliptic-ovate to oblong-ovate, 3-nerved, acute or obtuse, subentire to > sinuate-crenate or dentate, glabrous to dense tomentose on under surface, > base cuneate to rounded. Petiole 2.5-4.3 cm long. Flowers not seen. *Drupe > 20 mm long, ovoid, apiculate, brownish-yellow, base partly surrounded by > the enlarged, ± broadly cupular calyx.* > *Fl. Per*.: March-April. > Distribution: Pakistan, India Sri-Lanka. > Cultivated and sometimes found as an escape. The pulpy drupe is edible. > > Flora of Tropical East Africa > <http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:114380-1> > : > Habit: Tree 6–12 m. tall, *sometimes rather twisted, with young stems > hairy but soon glabrous, older with circular petiolar scars. * > Leaves: Leaves broadly ovate to subcircular, or sometimes obovate, 3–18 > cm. long, 3–20 cm. wide, rounded to cordate or cuneate at the base, *rounded > to shortly obtusely acuminate at the apex, *entire or repand-dentate, > subcoriaceous, *glabrous above*, glabrous to ± densely pubescent beneath > or even velvety; petiole 0.6–3.5 cm. long, glabrous or sparsely hairy. > Inflorescences: Cymes in terminal lax panicles, often on short lateral > branches, 3–8.5 cm. long, 2–7 cm. wide, axes glabrous to sparsely > pubescent; pedicels 1–2 mm. long, articulate at the apex. > Flowers: *Female:*calyx tubular-campanulate, 6–8.5 mm. long, *irregularly > 3–4-toothed, glabrous outside save for tips of lobes,* densely pubescent > inside; corolla-tube 4.5–6.5 mm. long; lobes 4–6, elliptic to obovate, 5–7 > mm. long, 2.5–3.5 mm. wide, reflexed and rolled up; stamens with filaments > 1.5–2.5 mm. long, ± pubescent; anthers sterile; ovary ellipsoid or obovoid, > 2.5–3.5 mm. long, 2–2.7 mm. wide; style exserted, 8–9 mm. long, deeply > divided into 4 stigmatic branches 4–5 mm. long, flattened and subfoliaceous > with irregular or erose-denticulate margins. *Male:calyx campanulate, > 4.5–5.5 mm. long, 3-lobed, glabrous outside,* pubescent to tomentose at > apex inside; corolla white; tube 3.5–4.5 mm. long;* lobes 5,* elliptic, 5 > mm. long, 2 mm. wide, reflexed; stamens exserted, the filaments 1.5–3.5 mm. > long, hairy at the base; ovary rudimentary and style absent. > Fruits: *Fruit yellow, apricot or blackish, ovoid, (1.2–)2–3.5 cm. long, > apiculate, held in the accrescent campanulate calyx (0.7–1 cm. long, > 1.2–1.5(–2) cm. wide), which is ± obscurely lobed or subtruncate*; pulp > mucilaginous and sweet; endocarp broadly ellipsoid or ± globose, ± 1.2 cm. > long, 1 cm. wide, deeply rugose, 4-locular but only 1 seed developing. > Habitat: Naturalised in coastal and other bushland and cultivated; 0–1050 > m. > Distribution: native of tropical Asia (India, etc.), cultivated and often > naturalised in tropical Africa, Senegal to Cameroon, also in N. Africa > (Algeria, Libya, Egypt) > > > *Cordia dichotoma* Forster. f.: > Flora of Pakistan > <http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200018953>: > A polygamo-dioecious tree up to 15 m tall. Branchlets pubescent. Leaves > 5-8 x 1.5-3.0 cm, elliptic-ovate to obovate, pubescent, especially on the > under-surface, *margin sometimes undulate,* base cuneate to oblique or > rounded. Petiole up to 3.0 cm long. Flowers in dichotomous cymes, > ebracteate. *Male flowers: Calyx c. 2.5 mm long, shallowly 5-lobed, *hairy > to the inside. Corolla campanulate, c. 6 mm long, tube about equalling the > limb, dense hairy within. Lobes oblanceolate or broadly so, recurved. > Filaments c. 4.5 mm, lower half hairy and adnate to tube; anthers 2.5-3 mm > long; bisexual flowers: similar but larger than male flowers. Calyx 5-6 mm > long, campanulate, accrescent and up to 10 mm in fruit. Filaments c. 2 mm > long. Style branched. *Drupe up to 15 mm broad, yellowish-red.* > *Fl. Per*.: March-April. > Distribution: Pakistan, Kashmir, India, S. China, Taiwan, Indo-China, New > Caledonia & N.E. Australia. > > Flora of China > <http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200018953>: > Trees 3-4(-20) m tall. Petiole 2-5 cm; leaf blade ovate to broadly ovate > or elliptic, 6-13 × 4-9 cm, sparsely pubescent or glabrous, base rounded to > broadly cuneate, *margin usually subundulate to undulate dentate, rarely > entire,* *apex obtuse to mucronate. *Inflorescences terminating leafy > lateral branches, dichotomously branched into corymbose cymes, widely > spaced, 5-8 cm wide. Flowers dimorphic, sessile. *Calyx campanulate, 5-6 > mm, 5-lobed; lobes unequal, triangular. *Corolla white, ca. as long as > calyx; lobes shorter than tube, margin somewhat undulate. Filaments of > staminate flowers ca. 3.5 mm, filaments of bisexual flowers 1-2 mm. > Rudimentary pistil globose. Style united portion 1-1.5 mm, first branches > ca. 1 mm, second branches 2-3 mm; stigma spatulate. *Drupes yellow or > reddish, subglobose, 1-1.5 cm in diam*., with sticky mesocarp, surrounded > by persistent calyx. Fl. Feb-Apr, fr. Jun-Aug. > Open woods on slopes, mountain streamsides. Fujian, Guangdong, Guangxi, > Guizhou, Taiwan, SE Xizang, Yunnan [Cambodia, N India, Indonesia, Japan > (Ryukyu Islands), Kashmir, Laos, Malaysia, Myanmar, Pakistan, Thailand, > Vietnam; NE Australia, Pacific Islands] > > On checking all the images, the* crucial difference appears to be > glabrous calyx in Cordia myxa in comparison to non-glabrous calyx in Cordia > dichotoma*. > The following on net seems to match with Cordia myxa (*mostly fruiting > images- I am not sure if the calyx become glabrous by that time,* except > for one small flowering image, in which it is difficult to observe glabrous > nature of the calyx correctly) > Useful Tropical Plants > <http://tropical.theferns.info/image.php?id=Cordia+myxa> > GBIF image <https://www.gbif.org/occurrence/2643544051> > Images in Flora of Peninsular India > <http://flora-peninsula-indica.ces.iisc.ac.in/herbsheet.php?id=2082&cat=7> > Landscape Plants > <https://landscapeplants.aub.edu.lb/Plants/GetPDF/eb18dc6a-e1b9-4352-b1be-1318cfc59eae> > > Following of our posts may be of Cordia myxa (*mostly fruiting images- I > am not sure if the calyx become glabrous by that time*): > Fruits for ID : 190611 : AK-3 > <https://groups.google.com/group/indiantreepix/browse_thread/thread/09b45da6a30d4708?hl=en#> > second species in three cordia species > <https://groups.google.com/forum/#!topic/indiantreepix/sDXp0mnp-fA> > Boraginaceae Week :: Cordia dichotoma at CBD Belapur Hills > <https://groups.google.com/forum/?hl=en&fromgroups#!topic/indiantreepix/NLLX7b4VWzE> > Tree for ID : Lalbagh, Bangalore : 280412 : AK-4 > <https://groups.google.com/forum/?hl=en&fromgroups#!topic/indiantreepix/6XXbqsb_PRo> > > *However, I strongly feel this minor difference does not warrant a > separate species status. And it is better to keep them together under **Cordia > dichotoma* > <https://sites.google.com/site/efloraofindia/species/a---l/b/boraginaceae/cordia/cordia-dichotoma> > > Any feedback will be highly appreciated. > -- > > > > > > > With regards, > J.M.Garg > > -- > You received this message because you are subscribed to the Google Groups > "ITPmods" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/itpmods/CA%2BiuSFCcVUZP6b6%3Dk7GZbfH74uYHZz8mTADqic7ru9WQrvi7Kg%40mail.gmail.com > <https://groups.google.com/d/msgid/itpmods/CA%2BiuSFCcVUZP6b6%3Dk7GZbfH74uYHZz8mTADqic7ru9WQrvi7Kg%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- A.Lalithamba -- You received this message because you are subscribed to the Google Groups "ITPmods" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/itpmods/CAOd090vm9d3rivVPCMvx8_wAuYGTMKeJ0wtKpVJq%2Bsff3k8nbg%40mail.gmail.com <https://groups.google.com/d/msgid/itpmods/CAOd090vm9d3rivVPCMvx8_wAuYGTMKeJ0wtKpVJq%2Bsff3k8nbg%40mail.gmail.com?utm_medium=email&utm_source=footer> . -- With regards, J.M.Garg -- You received this message because you are subscribed to the Google Groups "efloraofindia" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/indiantreepix/CA%2BiuSFDgqkr%2BO4mp1zgfyH4y3%3DCMFpMmn27ZG3Bk8Hb6%2Beegmg%40mail.gmail.com.
