Ulmus woodii, WHEELER AND, 2007
publication ID |
https://doi.org/ 10.5070/P9401462457 |
persistent identifier |
https://treatment.plazi.org/id/038AF505-A328-9639-5724-FC8FFD749986 |
treatment provided by |
Felipe |
scientific name |
Ulmus woodii |
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CF. ULMUS WOODII WHEELER AND MANCHESTER, 2007
FIG. 11A–F View Figure 11
Description— Growth ring boundaries distinct (1p). Wood semi-ring-porous to ring-porous (3p, 4p). Latewood vessels in radial multiples and clusters (11p) arranged in wavy tangential bands (6p) ( Fig.11A–C View Figure 11 ). Mean tangential diameters of earlywood vessels 70 ( SD =13) µm, range 48–87 µm. Perforation plates exclusively simple (13p, 14a). Intervessel pits crowded alternate (22p), polygonal in outline (23p), not vestured (29a), 7–11 µm in horizontal diameter (26p 27p); vessel-ray parenchyma pits similar in size to intervessel pits with borders somewhat reduced (31p) ( Fig. 11D View Figure 11 ). Vessel element lengths 139–214 µm (n=7). Widely spaced thin-walled tyloses present.
Fibers non-septate (66p), pits not observed (62a).
Axial parenchyma paratracheal, non-crystalliferous strands usually 4 cells.
Rays mostly 3–5-seriate (98p), uniseriate rays not common ( Fig. 11E,F View Figure 11 ); homocellular composed of procumbent cells (104p) ( Fig. 11D View Figure 11 ); multiseriate ray heights average 267 µm ( SD =95), range 146–444 µm.
Solitary prismatic crystals in chambered axial parenchyma strands, not in ray parenchyma (136p 138a 142p) ( Fig. 11D,F View Figure 11 ).
Pith composed of thin-walled isodiametric parenchyma.
Specimens— UF 278-62702, 84866, 84880, 84883, estimated maximum diameters of 4 cm, 2 cm with pith, 1.1 cm with pith.
Comments— Because of the tyloses, we could only
cells, Ab =absent, Occ =occasional; Ax Par =axial parenchyma distribution, Sc =scanty paratracheal, V =vasicentric, Al =aliform, Cf =confluent, Bnd =banded, M =marginal; Cry =crystals, AB =absent, RP =present in ray parenchyma, A =present in axial parenchyma;? =no information; * =small axis.
UF.278 WOODS POR V Grp V Arr IVP VRP RW Rcp ShC Ax Par Cry Sc, V, Urticaleoxylon stevensii / S-Rm Sim/ Ho, He SRP Ran 8–11 1–6 Ab Al, Cf, RP UF 278-84893 (2–3) Red (1) M S-Rms Sim/ 1–3 Ho, He Moroxylon ?/ UF 278-84899 RP Diag 8–11 Ab Cf, M Ab (Cl) Red (–4) (1–2)
Cannabaceae / Moraceae S-Rm
DP Ran Wood Type 1 UF 278-84894 (2–3)
Cannabaceae / Moraceae S-Rm
? * Ran Wood Type 2 UF 278-84906 (2–3)
SD |
San Diego Natural History Museum |
UF |
Florida Museum of Natural History- Zoology, Paleontology and Paleobotany |
V |
Royal British Columbia Museum - Herbarium |
M |
Botanische Staatssammlung München |
A |
Harvard University - Arnold Arboretum |
POR |
Università degli Studi di Napoli Federico II |
SRP |
Boise State University |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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