Prunus pananensis (Rosaceae), a new species from Pan'an of central Zhejiang, China.
Prunus pananensis Z. L. Chen, W. J. Chen & X. F. Jin, a new species of Rosaceae from central Zhejiang, China is described and illustrated. Micromorphological characters of the indumentum on young shoots, leaves, petioles and peduncles, including scanning electron microscope [SEM] images, are provided. This new species is morphologically similar to P. schneiderianae Koehne in having its young shoots, petioles and pedicels all densely villose, but differs in having bracts persistent, styles glabrous, stipules 8-9 mm long, stamens 28-30 of per flower, and drupes glabrous. The new species is also similar to P. discoidea (Yü & C. L. Li) Yü & C. L. Li ex Z. Wei & Y. B. Chang in having 2 or 3 flowers in an umbellate inflorescence, and bracts persistent and marginally glandular, but it differs in having young shoots and petioles densely covered with yellowish-brown villose trichomes; leaves rounded or slightly cordate at base, the mid-ribs and lateral veins abaxially densely covered with yellowish-brown villose trichomes; and hypanthium ca. 3 mm long, shorter than sepals. The atpB-rbcL and trnL-F intergenic chloroplast spacers are selected for identification of the new and its similar species.
College of Life & Environment Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, People's Republic of China.
Zi-Lin
ZL
Chen
Wei-Jie
WJ
Chen
Huan
H
Chen
Ying-Ying
YY
Zhou
Mei-Qin
MQ
Tang
Meng-Qi
MQ
Fu
Xiao-Feng
XF
Jin
D002681:China; D025222:Chloroplast Proton-Translocating ATPases / Q000235:genetics; D018742:DNA, Chloroplast / Q000737:chemistry / Q000235:genetics*; D021901:DNA, Intergenic / Q000235:genetics; D035264:Flowers / Q000033:anatomy & histology / Q000648:ultrastructure; D008855:Microscopy, Electron, Scanning; D008969:Molecular Sequence Data; D010802:Phylogeny; D035261:Plant Components, Aerial / Q000033:anatomy & histology* / Q000648:ultrastructure; D018515:Plant Leaves / Q000033:anatomy & histology / Q000648:ultrastructure; D018520:Plant Shoots / Q000033:anatomy & histology / Q000648:ultrastructure; D018514:Plant Structures / Q000033:anatomy & histology / Q000648:ultrastructure; D027861:Prunus / Q000033:anatomy & histology* / Q000145:classification / Q000235:genetics*; D012343:RNA, Transfer / Q000235:genetics; D012273:Ribulose-Bisphosphate Carboxylase / Q000235:genetics; D017422:Sequence Analysis, DNA; D013045:Species Specificity
D018742:DNA, Chloroplast; D021901:DNA, Intergenic; D012343:RNA, Transfer; D025222:Chloroplast Proton-Translocating ATPases; C101625:RbcL protein, plastid; D012273:Ribulose-Bisphosphate Carboxylase