Psydrax

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Psydrax dicoccos Gaertn. (S. China to Tropical Asia: Andaman Is., Bangladesh, Cambodia, China South-Central, China Southeast, Hainan, India, Jawa, Laos, Myanmar, Nicobar Is., Sri Lanka, Thailand, Tibet, Vietnam as per POWO)
(Cymes compressed shortly peduncled)

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Psydrax umbellatus (Wight) Bridson (India to Indo-China: Andaman Is., Cambodia, India, Myanmar, Thailand, Vietnam as per POWO)
(Flowers umbellate on a short very stout compressed peduncle)

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BSI Flora of India Checklist Vol. 2 (Distribution):

Name	Distribution
Psydrax dicoccos	ssp. dicoccos (Assam, Bihar, Kerala, Karnataka, Meghalaya, Odisha, Sikkim, Tamil Nadu, Tripura, West Bengal) var. lanceolata (Arn.) Ridsdale (Tamil Nadu) (syn. of Psydrax lanceolatus (Arn.) R.Kr.Singh & Arigela as per POWO)
Psydrax ficiformis	Kerala, Tamil Nadu
Psydrax glabra	Andaman & Nicobar Islands, Arunachal Pradesh, Assam, Meghalaya, Nagaland, Odisha, Sikkim, Tripura, West Bengal (Canthiumera glabra (Blume) K.M.Wong & Mahyuni syn. Psydrax glaber (Blume) Deb & M.Gangop. as per POWO, with no distribution shown in India)
Psydrax kingii	West Bengal
Psydrax pergracilis	Kerala, Tamil Nadu
Psydrax umbellata	Andaman & Nicobar Islands, Karnataka, Kerala, Maharashtra, Tamil Nadu (Psydrax umbellatus (Wight) Bridson as per POWO)

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Flora of Peninsular India:
Psydrax dicoccos var. dicoccos
Psydrax dicoccos var. lanceolatus (syn. of Psydrax lanceolatus (Arn.) R.Kr.Singh & Arigela as per POWO)
Psydrax ficiformis
Psydrax pergracilis
Psydrax umbellata (Psydrax umbellatus (Wight) Bridson as per POWO)

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From Floral Database of Tamilnadu :

Binomial

Habit

Notes

Ref.

Distrib.

Canthium ficiforme Hook.f. is a synonym of Psydrax ficiformis (Hook.f.) Bridson

Tree

Western Ghats, Evergreen Forests

Flora of Tamil Nadu, VOL. II, 1987; Gamble 1957

Coimbatore, Theni, Tirunelveli

Psydrax dicoccos Gaertn. var. dicoccos	Tree	Dry Evergreen to Dry Deciduous Forests	Flora of Tamil Nadu, VOL. II, 1987	All districts
Psydrax dicoccos Gaertn. var. lanceolatus  (Arn.) Ridsd. (syn. of Psydrax lanceolatus (Arn.) R.Kr.Singh & Arigela as per POWO)	Tree	Western Ghats, Evergreen Forests	Flora of Tamil Nadu, VOL. II, 1987	Tirunelveli
Psydrax ficiformis (Hook.f.) Bridson	Tree	Western Ghats, Evergreen Forests	Matthew, 1999	Dindigul, Tirunelveli
Psydrax umbellata (Wight) Bridson (Psydrax umbellatus (Wight) Bridson as per POWO)	Tree	Dry to Moist Deciduous Forests	Flora of Tamil Nadu, VOL. II, 1987	All districts

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FRLHT Indian Medicinal Plants Nomenclature Database with images/ herbarium, distribution, local names etc. :

Canthium dicoccum (GAERTN.) TEIJSM. & BINN. Var. dicoccum (? Canthium dicoccum (Gaertn.) Merr. is a synonym of Psydrax dicoccos Gaertn.)
Canthium umbellatum WIGHT is a synonym of Psydrax umbellatus (Wight) Bridson as per POWO

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Species with description & pictures in Flowers of India as on 8.3.14:

Botanical name

Synonyms

Family

Common name

Canthium diccocum is a synonym of Psydrax dicoccos Gaertn.

Canthium didymum, Psydrax dicoccos

Rubiaceae

Ceylon Boxwood

Psydrax umbellata (Psydrax umbellatus (Wight) Bridson as per POWO)

Canthium umbellatum, Canthium umbellulatum, Plectronia umbellata

Rubiaceae

Umbelled Canthium

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Species with distribution in annotated checklist of Flowering plants of Nepal :
Canthium dicoccum (Gaertn.) Teijsm. & Binn. (? Canthium dicoccum (Gaertn.) Merr. is a synonym of Psydrax dicoccos Gaertn.)

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Flora of Eastern Ghats: Hill Ranges of South East India, Volume 3 By T. Pullaiah, K. Sri Ramamurthy (2007)-

Details with keys–

Canthium dicoccum (GAERTN.) TEIJSM. & BINN. Var. dicoccum (? Canthium dicoccum (Gaertn.) Merr. is a synonym of Psydrax dicoccos Gaertn.)

Flora of Guntur District, Andhra Pradesh, India (2000)- Details with keys–

Canthium dicoccum (GAERTN.) TEIJSM. & BINN. Var. dicoccum (? Canthium dicoccum (Gaertn.) Merr. is a synonym of Psydrax dicoccos Gaertn.)
Canthium parviflorum LAM. is a synonym of Canthium coromandelicum (Burm.f.) Alston

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Medicinal Plants in Andhra Pradesh, India By T. Pullaiah (2002)- Details with illustration-
Canthium dicoccum (GAERTN.) TEIJSM. & BINN. Var. dicoccum (? Canthium dicoccum (Gaertn.) Merr. is a synonym of Psydrax dicoccos Gaertn.)

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Flora of Davanagere District, Karnataka, India By B. K. Manjunatha, V. Krishna, T. Pullaiah (2004)- Details with keys–
Canthium dicoccum var. umbellatum (Wight) Santapau & Merchantis a synonym of Psydrax umbellata (Wight) Bridson

Canthium didymum C.F.Gaertn.is a synonym of Psydrax dicoccos Gaertn.

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From Biotik :
Canthium dicoccum (Gaertn.) Teys. & Binn. (? Canthium dicoccum (Gaertn.) Merr. is a synonym of Psydrax dicoccos Gaertn.)

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Canthium & Psydrax : 1 post by 1 author.

I have updated eFI (efloraofindia) page on Canthium & Psydrax

Attempts have been made to incorporate most of the species available in India & nearby areas with details & keys directly or through links as far as possible. It’s quite possible that there may be some discrepancy in the accepted names & synonyms taken from other links.

Species discussed so far in efloraofindia are given at the bottom of the page in the form of links against Subpages. On clicking them one can see all the details.

If someone can provide complete list of Indian species with source references it will be wonderful.

Any comments/ corrections are welcome

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