Bauhinium palaeomalabaricum U.Prakash et Mah.Prasad

Plant Fossil Names Registry Number: PFN003723

Act LSID: urn:lsid:plantfossilnames.org:act:3723

Authors: U. Prakash & M. Prasad

Rank: species

Genus:

Reference for this name: Prakash, U. & Prasad, M. (1983): Wood of Bauhinia from the Siwalik beds of Uttar Pradesh, India. – The Palaeobotanist 32(2): 140–145.

Page of description: 140

Illustrations or figures: pl. 1 (figs 1, 3), pl. 2 (figs 5-8)

Name is type for

Types

Original diagnosis/description

Wood diffuse-porous. Growth rings indistinct. Vessels mostly medium to large, solitary as well as in radial multiples of 2-7 (mostly 2-3), t.d. 80-220 μm, r.d. 102-300 μm, 6-10 per sq mm, sometimes plugged with dark to brown gummy deposits; vessel members 152-750 μm in length with truncate ends, irregularly storied; perforations simple; intervessel pit-pairs alternate, vestured, 6-8 μm in diameter with linear to lenticular apertures. Parenchyma confluent, banded, bands slightly sinuate, ragged, 3-9 (usually 4-6) cells thick, running in concentric arrangement, 3-4 per mm, alternating with somewhat broader bands of fibres; parenchyma strands irregularly storied. Xylem rays 1-2 (mostly 1 seriate), 18-52 μm in width, 4-32 cells or 132-720 μm in height and storied; ray tissue heterogeneous consisting of homo- to heterocellular rays composed either of procumbent cells only or both upright and procumbent cells; upright cells usually in one row at the ends or sometimes in the middle part of the rays. Fibres libriform to semilibriform, moderately thick-walled, polygonal in cross section, nonseptate, 8-17 μm in diameter and 440-1364 μm in length; interfibre pits not seen. Ripple marks present due to storied arrangement of xylem rays, vessel segments and parenchyma strands.

Stratigraphy

Neogene, Miocene
Lower Siwalik Formation.

Locality

India
Kalagarh, District Pauri Garhwal, Uttar Pradesh.