Duke Bryology Laboratory - Pohlia in Australia <meta name=Title content="Duke Bryology Laboratory - taxonomy projects - Pohlia"> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta name=description content="The website of A.J. Shaw lab at Duke University, NC, USA"> <meta name=Keywords content="Shaw Bryology Duke University taxonomy Pohlia Australia">  <link rel="stylesheet" href="img/stylesheet.css"></head> <body bgcolor="#FFFFFF" BODY TOPMARGIN=0 LEFTMARGIN=0 MARGINHEIGHT=0 MARGINWIDTH=0 link="#333333" vlink="#333333" alink="#660000"> <table width="900" border="0" cellspacing="0" cellpadding="12"> <tr height="35" bgcolor="#C8C8C8" > <td class="menu2" height="32"><a name="top"></a>Duke Bryology Lab</td><td class="menu" height="32"> <div align="right"><a href="index.html" target="_self" style="text-decoration:none"> Home</a> <a href="facilities.html" target="_self" style="text-decoration:none">Facilities</a> <a href="people.html" target="_self" style="text-decoration:none">People</a> <a href="projects.html" target="_self" style="text-decoration:none">Projects</a> <a href="protocols.html" target="_self" style="text-decoration:none">Protocols</a> <a href="links.html" target="_self" style="text-decoration:none">Links</a></div></td></tr> </table><table width="900" border="0" cellspacing="0" cellpadding="0"> <tr> <td height="140" width="145" align="left" valign="top"><img src="img/mr19.jpg" width="145" height="152"></td><td rowspan="2" align="left" valign="top" width="10" > </td><td align="left" valign="top" height="10" rowspan="2" > <p align="right"> </p> <h3>A revision of the moss genus <i>Pohlia</i> Hedw. in Australia</h3><p>The moss genus <i>Pohlia</i> is most diverse in the Northern Hemisphere but ten species occur in Australia, mostly in New South Wales and Tasmania. Only one species, <i>P. clavaeformis</i>, is endemic to Australia; <i>P. tenuifolia</i> is disjunct between Australia and South America; <i>P. flexousa</i> is widespread in southern Asia, and <i>P. inflexa</i> is high-latitude; circum-Antarctic. The remaining six species are more or less widespread in the Northern Hemisphere.</p><p>KEY TO THE AUSTRALIAN SPECIES OF <i>POHLIA</i> </p><table width="95%" border="0" cellspacing="0" cellpadding="0" align="center"> <tr> <td width="15" valign="top">1</td><td>Plants with axillary gemmae</td><td width="130" valign="bottom"> <div align="right">2</div></td></tr> <tr> <td width="15" valign="top">1</td><td>Plants without axillary gemmae</td><td width="130" valign="bottom"> <div align="right">5</div></td></tr> <tr> <td width="15" valign="top">2</td><td>Gemmae single in each leaf axil, red, with conspicuous, laminate leaf primordia</td><td width="130" valign="bottom"> <div align="right">9. <i>P. inflexa</i></div></td></tr> <tr> <td width="15" valign="top">2</td><td>Gemmae numerous in each leaf axil, variable in color but not red</td><td width="130" valign="bottom"> <div align="right">3</div></td></tr> <tr> <td width="15" valign="top">3</td><td>Gemmae spherical or nearly so</td><td width="130" valign="bottom"> <div align="right">4</div></td></tr> <tr> <td width="15" valign="top">3</td><td>Gemmae obconic or variously elongate and vermicular</td><td width="130" valign="bottom"> <div align="right">6. <i>P. flexuosa</i></div></td></tr> <tr> <td width="15" valign="top">4</td><td>Gemmae 70-150 µm in diameter, glossy, with 1-4 relatively short, peglike apical leaf primordia</td><td width="130" valign="bottom"> <div align="right">8. <i>P. camptotrachela</i></div></td></tr> <tr> <td width="15" valign="top">4 </td><td>Gemmae 175-400 µm in diameter, dull or slightly glossy, with 4 broadly laminate apical leaf primordia that form a dome over the apex</td><td width="130" valign="bottom"> <div align="right">7. <i>P. bulbifera</i></div></td></tr> <tr> <td width="15" valign="top">5</td><td>Plants tiny; leaves linear-lanceolate</td><td width="130" valign="bottom"> <div align="right">4. <i>P. tenuifolia</i></div></td></tr> <tr> <td width="15" valign="top">5</td><td>Plants small to large; leaves lanceolate to ovate-lanceolate</td><td width="130" valign="bottom"> <div align="right">6</div></td></tr> <tr> <td width="15" valign="top">6</td><td>Plants very pale; leaf cells broad, 12-18µm wide</td><td width="130" valign="bottom"> <div align="right">10. <i>P. wahlenbergii</i></div></td></tr> <tr> <td width="15" valign="top">6</td><td>Plants dark to light green, not notably pale; leaf cells narrower, 6-10(-12)µm wide</td><td width="130" valign="bottom"> <div align="right">7</div></td></tr> <tr> <td width="15" valign="top">7</td><td>Plants dull; leaf cells elongate-hexagonal, with ± thickened walls</td><td width="130" valign="bottom"> <div align="right">8</div></td></tr> <tr> <td width="15" valign="top">7</td><td>Plants ± shiny; leaf cells rhomboidal to linear rhomboidal; with thin walls</td><td width="130" valign="bottom"> <div align="right">9</div></td></tr> <tr> <td width="15" valign="top">8</td><td>Capsule neck as long or longer than the urn; endostome segments narrowly perforate along the keels; cilia absent or rudimentary</td><td width="130" valign="bottom"> <div align="right">2.<i> P. elongata</i></div></td></tr> <tr> <td width="15" valign="top">8</td><td>Capsule neck shorter than the urn; endostome segments broadly perforate along the keels; cilia long and nodulose</td><td width="130" valign="bottom"> <div align="right">1. <i>P. nutans</i></div></td></tr> <tr> <td width="15" valign="top">9</td><td>Capsules erect; endostome segments irregular, with narrowly (or non-) perforate segments; cilia absent</td><td width="130" valign="bottom"> <div align="right">5. <i>P. clavaeformis</i></div></td></tr> <tr> <td width="15" valign="top">9</td><td>Capsules + inclined; endostome segments well-developed, broadly perforate; cilia present</td><td width="130" valign="bottom"> <div align="right">3. <i>P. cruda</i></div></td></tr> </table><p><b>Fig. 1</b>. <i>Pohlia</i>. <b>A-D</b>, <i>P. nutans</i> (Bastow 298, MEL). <b>A</b>, upper leaf cells; <b>B</b>, capsule; <b>C</b>, leaves; <b>D</b>, habit. E-H, <i>P. elongata</i> (K. W. Atkins, 1952). <b>E</b>, habit; <b>F</b>, capsule; <b>G</b>, leaves; <b>H</b>, upper median leaf cells.<b> I-L</b>, <i>P. cruda</i> (Willis 228w, MEL).<b> I</b>, habit (sterile plant); <b>J</b>, upper median leaf cells; <b>K</b>, leaves; <b>L</b>, habit (female plant). <b>M-P</b>, <i>P. tenuifolia </i>(J. Spence 4430, Hb. J. Spence). <b>M</b>, capsule; <b>N</b>, habit; <b>O</b>, leaves;<b> P</b>, upper leaf cells. Scale bar: A = 450 µm; B, F, M = 5 mm; C, G, K, O = 1.5 mm; D, E = 2 mm; H, J = 220 µm; I, L, N = 9 mm; P = 110 µm.</p><p><b>Fig. 2</b>. <i>Pohlia</i>. <b>A-E</b>, <i>P. clavaeformis</i> (F. Mueller 2149, AD). <b>A</b>, habit; <b>B</b>, capsule; <b>C</b>, peristome; <b>D</b>, upper median leaf cells; <b>E</b>, leaf. <b>F-J</b>, <i>P. camptotrachela</i> (Spence 4728 DUKE). <b>F</b>, perichaetial leaf; <b>G</b>, leaf, sterile plant; <b>H</b>, gemmae; <b>I</b>, upper median leaf cells. <b>J-K</b>. <i>P. flexuosa</i> (J. Spence 4655, Hb. J. Spence). <b>J</b>, gemmae; <b>K</b>, leaves. <b>L-M</b>, <i>P. bulbifera</i> (Weber & McVean, 1968, COLO). <b>L</b>, gemma; <b>M</b>, leaves. <b>N-R</b>, <i>P. inflexa</i> (Catcheside 68.72, AD [N, Q]; McVean 26426, CANB [O-P, R]). <b>N</b>, habit of gemmiferous plant; <b>O</b>, gemma;<b> P</b>, habit, nongemmiferous stem; <b>Q</b>, upper median leaf cells; <b>R</b>, leaves. <b>S-T</b>, <i>P. wahlenbergii</i> (C. B. Kay, MEL), <b>S</b>, upper median leaf cells; <b>T</b>, leaves. Scale bar: A = 0.75; B = 5 mm; C,L = 300 µm; D, H, L, Q, S = 100 µm; E, F, G, K, M, R, T = 1.5 mm; J = 150 µm; N = 0.65 mm; O = 350 µm; P = 0.55 µm.</p><h1><b><img src="img/pohliaaustr1.jpg" width="350" height="418" vspace="5" hspace="5" border="1" color="#666666" alt="Figure 1"><img src="img/pohliaaustr2.jpg" width="350" height="464" border="1" color="#666666" alt="Figure 2"></b></h1><h1>Reference:</h1><p><span class="ref">Shaw, A. J. Accepted to Systematic Botany. <b>A revision of the moss genus Pohlia Hedw. (Mniaceae) in Australia.</b></span></p><p><--- <a href="#top" target="_self">TOP</a></p><p> </p></td></tr> <tr> <td width="145" valign="top" bgcolor="#FFFFCC"> <p><span class="note"> <br> Shaw Laboratory<BR></span><span class="note"> 139 Biological Sciences Bldg. <br> Box 90338 <br> Department of Biology <br> Duke University <br> Durham<br> North Carolina 27708 <br> U.S.A.</span></p><p align="left"><span class="note"> Phone: (+1) 919 660-7345<br> Fax: (+1) 919 660-7293</span><span class="note"><BR> </span></p></td></tr> </table><table width="900" border="0" cellspacing="0" cellpadding="2"> <tr> <td> </td></tr> </table> </body> </html>