{"id":1454040,"date":"2021-10-15T19:36:31","date_gmt":"2021-10-15T14:06:31","guid":{"rendered":"https:\/\/efloraofindia.com\/?p=1454040"},"modified":"2024-12-23T16:12:33","modified_gmt":"2024-12-23T10:42:33","slug":"pteris-blumeana","status":"publish","type":"ht_kb","link":"https:\/\/efloraofindia.com\/efi\/pteris-blumeana\/","title":{"rendered":"Pteris blumeana"},"content":{"rendered":"

Pteris blumeana\u00a0<\/i>Agardh, Rec. Pterid. 22 1839<\/cite>. (syn:\u00a0Pteris quadriaurita<\/em>\u00a0var.\u00a0blumeana<\/em>\u00a0(J.Agardh) C.B.Clarke<\/a>);
\n.<\/span>
\nChina (Yunnan) to Tropical Asia: Assam, Bangladesh, Bismarck Archipelago, Cambodia,<\/span> East Himalaya, India, Jawa, Laos, Malaya, Maluku,<\/span> Myanmar, New Guinea, Philippines, Solomon Is., Sulawesi, Thailand, Vietnam<\/span> as per POWO<\/a>;
\n.<\/span><\/p>\n

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\"\"<\/a> \"\"<\/a>
\nPteridaceae week 7\/10\/21<\/a>: 2 high res. images.
\nattaching images of Pteridophyte- Pteris biaurita<\/em> from Nashik<\/span> for validation please
\nvalidate.<\/p>\n

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No it is not P. biaurita<\/em> at all! Entirely different. In P. biaurita<\/em> the bases of the pinnules are much more deeply joined together, so the base of the interpinnular sinus is several mm or more above the pinna-midrib.<\/span> But in this species you can see the pinnules are cut down to the pinna-costa.<\/span> Also the ultimate segments in P. biaurita<\/em> are not so narrow. Lowest veinlets anastomose in biaurita,<\/em> <\/span>not in this species.<\/div>\n
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The many very narrow pinnules show it to be P. blumeana<\/em> <\/span>– and as the photo is out of focus and shows the wrong surface (top surface is needed for the compound Pteris<\/em> species) and one can’t see the pinnule-apices either – it is something the collector can do to confirm it as P. blumeana<\/em>.<\/div>\n
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1. There should be long thin white setae on the segment-midribs (pinnule-midribs) on their top surface – though if the specimen is dipped in alcohol, they are easily deciduous.<\/span><\/div>\n
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2. The tips of the ultimate segments (pinnules) should be non-mucronate, just rounded (sometimes very slightly sub-mucronate, but not usually).<\/span><\/div>\n
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P. blumeana<\/em> is quite common in the hills of South India, and not usually at very high altitude, lower in the E. Himalaya, too.\u00a0 It has usually been misidentified as P. aspericaulis<\/em>, which latter does not occur in peninsular India.<\/p>\n
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Thanks … I will post clear photos<\/p>\n

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References: POWO<\/a> \u00a0Catalogue of Life<\/a>\u00a0 The Plant List Ver.1.1<\/a> \u00a0Tropicos<\/a> \u00a0Flora of peninsular India<\/a> \u00a0PteridoPortal<\/a>\u00a0 Flora fauna web<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Pteris blumeana\u00a0Agardh, Rec. Pterid. 22 1839. (syn:\u00a0Pteris quadriaurita\u00a0var.\u00a0blumeana\u00a0(J.Agardh) C.B.Clarke); . China (Yunnan) to Tropical Asia: Assam, Bangladesh, Bismarck Archipelago, Cambodia, East Himalaya, India, Jawa, Laos, Malaya, Maluku, Myanmar, New Guinea, Philippines, Solomon Is., Sulawesi, Thailand, Vietnam as per POWO; . Pteridaceae week 7\/10\/21: 2 high res. images. attaching images of…<\/p>\n","protected":false},"author":2,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"ht-kb-category":[5868],"ht-kb-tag":[],"class_list":["post-1454040","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-pteris"],"_links":{"self":[{"href":"https:\/\/efloraofindia.com\/wp-json\/wp\/v2\/ht-kb\/1454040","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=1454040"}],"version-history":[{"count":0,"href":"https:\/\/efloraofindia.com\/wp-json\/wp\/v2\/ht-kb\/1454040\/revisions"}],"wp:attachment":[{"href":"https:\/\/efloraofindia.com\/wp-json\/wp\/v2\/media?parent=1454040"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/efloraofindia.com\/wp-json\/wp\/v2\/ht-kb-category?post=1454040"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/efloraofindia.com\/wp-json\/wp\/v2\/ht-kb-tag?post=1454040"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}