{"id":1439740,"date":"2021-03-29T15:29:10","date_gmt":"2021-03-29T09:59:10","guid":{"rendered":"https:\/\/efloraofindia.com\/?p=1439740"},"modified":"2024-12-23T16:14:38","modified_gmt":"2024-12-23T10:44:38","slug":"pterocymbium-tinctorium","status":"publish","type":"ht_kb","link":"https:\/\/efloraofindia.com\/efi\/pterocymbium-tinctorium\/","title":{"rendered":"Pterocymbium tinctorium"},"content":{"rendered":"

Pterocymbium tinctorium\u00a0<\/i>(Blanco) Merr., Publ. Bur. Sci. Gov. Lab. 27: 24 1905<\/cite>. (syn: Heritiera tinctoria<\/i> Blanco; Pterocymbium campanulatum<\/i> Pierre; Pterocymbium columnare<\/i> Pierre; Pterocymbium macrocrater<\/i> Warb.; Pterocymbium nicobaricum<\/i> Didr.; Sterculia campanulata<\/i> Wall. ex Mast.);
\n.<\/span>
\nAssam to Malesia: Andaman Is., Assam, Borneo, Jawa, Laos, Malaya, Maluku,<\/span> Myanmar, Nicobar Is., Philippines, Sulawesi, Thailand, Vietnam<\/span> as per POWO<\/a>;
\n.<\/span>
\nCommon name:<\/b>\u00a0Winged Boot Tree, Bellflower Sterculia
\n.<\/span><\/p>\n

\n

Trees, to 20 m high,<\/span> bark grey-brown. Leaves simple, alternate; stipules ca. 6 mm long, subulate, cauducous; petiole 3-10 cm long, slender; lamina 10-15 x 7-12 cm, ovate or ovate-oblong, base cordate, apex acute or acuminate, margin entire, glabrous above, pubescent beneath, coriaceous; 5-7-ribbed from the base, palmate, prominent, intercostae scalariform. Flowers polygamous, in terminal umbellate panicles; calyx 1.5 x 4 cm, campanulate, glabrous, lobes 5, lanceolate; stamens 10 or 8, united to form a staminal column, pubescent below; ovary superior, 5, free, sessile, gibbous at base; styles short. Fruit a follicle, 5-9 x 1.8-2.5 cm, boat shaped with a pouch-like bulging at base, glabrous, membranous, 2-lobed, lower broad, round, upper linear, obtuse, glabrous, dehiscing before maturity; seed 1, 1 cm long, basal, ellipsoid to ovoid.<\/span>
\nFlowering and fruiting: January-May<\/span>
\nRaised in plantations<\/span>
\n(Attributions- Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi as per India Biodiversity Portal<\/a> (Pterocymbium tinctorium javanicum (<\/i>R. Br.)\u00a0<\/i>Kosterm.))
\n.<\/span><\/p>\n

\n

\"\"<\/a> \"\"<\/a> \"\"<\/a> \"\"<\/a> \"\"<\/a>
\ntree at Agara Lake, HSR Layout, Bengaluru:<\/a> 5 images.
\nDate\/Time- Tree 28 FEB 2021, Flowers 1 on ground 28 FEB 2021,<\/span> Buds 1 MAR 2021, Leaf 16 MAR 2021, Flowers 2 on ground 17 MAR2021<\/span>
\nLocation- Place, Altitude, GPS- Agara Lake, HSR Layout, Bengaluru. 12.923 N 77.642 E<\/span>
\nHabitat- Garden\/ Urban\/ Wild\/ Type- Urban.<\/span>
\nPlant Habit- Tree\/ Shrub\/ Climber\/ Herb- Tree.<\/span>
\nHeight\/Length- 6 meters.<\/span>
\nLeaves Type\/ Shape\/ Size- Oval with prominent veins. \u00a0<\/span>
\nInflorescence Type\/ Size- Bunches like grapes<\/span>
\nFlowers Size\/ Colour\/ Calyx\/ Bracts- Pentamers, two types (may be male and female)<\/span>
\nFruits Type\/ Shape\/ Size Seeds- If seen in future, I will report.<\/p>\n

\n

Is it \u00a0Sterculia villosa<\/span><\/small><\/em> ? <\/span><\/small>We can confirm it now after\u00a0the\u00a0fruits come<\/span><\/p>\n

\n

It looks like\u00a0Pterocymbium tinctorium\u00a0<\/i>of Malvaceae.<\/em> If yes, then this would be an addition to our database!
\nFlowers of India<\/a>
\nWikipedia<\/a><\/p>\n

\n
\"\"<\/a> \"\"<\/a>
\nI am attaching two more pictures. The images of\u00a0Pterocymbium tinctorium<\/i>\u00a0in ‘Flowers of India’ are quite close to my images.<\/p>\n
\n<\/div>\n
\n

It appears to me that the image shows a female flower. The seeds are not formed yet.<\/p>\n

\n<\/div>\n
\n
\n

Any Malvaceae<\/em> member?<\/p>\n

\n

Need\u00a0 sometime to check. Seems to be a distinctive tree not seen earlier in Mysore or Bangalore by me.<\/p>\n

\n

Sterculia species.\u00a0S.companulata\u00a0<\/i>?????<\/p>\n

\n

I thought it looks more like some Sterculia<\/em> :\u00a0Pterocymbium tinctorium<\/i> never seen this.
\nI will one day go and see the tree.
\nThanks for showing me new one.<\/p>\n<\/div>\n

\n<\/div>\n

\"\"<\/a>
\nI would like to add one more photo. It is showing the fruit. This photo is clicked on 23 MAR 2021.<\/p>\n

\n

\"\"<\/a> \"\"<\/a>
\nI had been following the development of flowers on the tree at Agara Lake, namely Pterocimbium\u00a0tinctorium<\/em>.
\nI would like to share the following.
\nLots of flowers were seen on the tree from 17 FEB 2022. Many of them were falling on the ground. I observed some of them but could not see even a single female flower, all were male flowers. In the first week of March, the number of flowers on the tree was greatly reduced and so the flowers falling on the ground. On 9 MAR 2022 there were few flowers on the tree. By bending one of the branches, I could reach one of the flowers. It was closed. I opened the tepals. And what a surprise, there wasn\u2019t the usual staminal column but a gynoecium. This confirmed that it was a female flower.
\nI am sharing photos of the female flower.<\/p>\n

\n

 <\/p>\n

\n

.<\/span><\/p>\n

References: POWO<\/a> \u00a0Catalogue of Life<\/a>\u00a0 The Plant List Ver.1.1<\/a> \u00a0WCSP \u00a0IPNI<\/a>\u00a0 GBIF<\/a> (High resolution specimens) Flora of peninsular India<\/a> Flowers of India<\/a>\u00a0 India Biodiversity Portal<\/a>\u00a0 Kerala plants<\/a> (Pterocymbium tinctorium javanicum (<\/i>R. Br.)\u00a0<\/i>Kosterm.)\u00a0 Wikipedia<\/a> Wikimedia Commons<\/a>\u00a0 PROSEA<\/a>\u00a0 Useful Tropical Plants<\/a> \u00a0nbrienvis pdf<\/a>
\nPterocymbium tinctorium (Merrill, 1901) (Magnoliophyta: Malvales: Sterculiaceae: Sterculioideae): New record from mainland India and extension of geographic distribution<\/a>– June 2013 Check List 9(2)- Bikarma Singh, Dibyendu Adhikari, Saroj Barik and Arun Chettri (Abstract: We present a new record of the winged-boot tree (Pterocymbium tinctorium) discovered in the Khasi Hills of Meghalaya on the Indian mainland. With this record, the known geographical distribution of P. tinctorium is now extended up to the foothills of the Eastern Himalayas in Southeast Asia. The species was recorded from the tropical moist deciduous forests of Meghalaya. The habitat of P. tinctorium was characterized by the presence of surface lime-stone with karst topography. Future investigations should aim at identifying the factors responsible for the restricted distribution of this species so that appropriate conservation measures can be taken.)<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Pterocymbium tinctorium\u00a0(Blanco) Merr., Publ. Bur. Sci. Gov. Lab. 27: 24 1905. (syn: Heritiera tinctoria Blanco; Pterocymbium campanulatum Pierre; Pterocymbium columnare Pierre; Pterocymbium macrocrater Warb.; Pterocymbium nicobaricum Didr.; Sterculia campanulata Wall. ex Mast.); . Assam to Malesia: Andaman Is., Assam, Borneo, Jawa, Laos, Malaya, Maluku, Myanmar, Nicobar Is., Philippines, Sulawesi, Thailand,…<\/p>\n","protected":false},"author":2,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"ht-kb-category":[9682],"ht-kb-tag":[],"class_list":["post-1439740","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-pterocymbium"],"_links":{"self":[{"href":"https:\/\/efloraofindia.com\/wp-json\/wp\/v2\/ht-kb\/1439740","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/efloraofindia.com\/wp-json\/wp\/v2\/ht-kb"}],"about":[{"href":"https:\/\/efloraofindia.com\/wp-json\/wp\/v2\/types\/ht_kb"}],"author":[{"embeddable":true,"href":"https:\/\/efloraofindia.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/efloraofindia.com\/wp-json\/wp\/v2\/comments?post=1439740"}],"version-history":[{"count":0,"href":"https:\/\/efloraofindia.com\/wp-json\/wp\/v2\/ht-kb\/1439740\/revisions"}],"wp:attachment":[{"href":"https:\/\/efloraofindia.com\/wp-json\/wp\/v2\/media?parent=1439740"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/efloraofindia.com\/wp-json\/wp\/v2\/ht-kb-category?post=1439740"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/efloraofindia.com\/wp-json\/wp\/v2\/ht-kb-tag?post=1439740"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}