摘要
乔木高sin;/J’枝具皮孔,被短柔毛.羽状复叶长10一14cm;托叶早落;小叶3一4对,厚纸质,椭圆形或倒卵形,长1.3—5.5cm,宽0.7—3.5cm,先端微缺,稀圆钝并有小尖头,基部圆形或楔形,稀浅心形,两面被伏贴短柔毛,下面中脉上毛较密。圆锥花序顶生,长5—7cm,被...
Dalbergia ximengensis Y. Y. Qian sp. nov. Fig. 1. Species affinis D. fuscae Pierre, sed foliolis 3-4-jugatis, crasse papyraceis, ellipticis velobovatis, 1 .3 - 5.5 cm longis, 0.7 - 3.5 cm latis, supra pubescentibus, paniculis terminalibus ,bracteolis ovatis, dentibus calycis superjectis 2 ovatis et lateralibus 2 oblongis, apiceobtusis, ovariis secus suturam ventralem pubescentibus, 2-o vulatis differt. Arbor 8 m alta; ramuli lenticellis, pubescentes. Folia pinnata 10- 14 cm longa; stipulae caducae; foliola 3 - 4-jugata, crasse papyracea, elliptica vel obovata, 1.3 - 5.5 cm longa,0.7- 3.5 cm lata, apice emarginata, raro obtusa cum acumine , basi rotundata vel cuneatararo subcordata, utrinque pubescentia, subtus seens costas densiora. Paniculae terminales ,5- 7 cm longae, pubescentes, ramulis 2- 4 cm longis; bracteolae ovatae, apice obtusae,0.81- 1 mm longae, pedicelli 0.5- 1 mm longi, pubescentes; calyces campanulati, circa 2 mm longi, extra pubescentes, dentibus 5, superjectis 2 ovatis circa 1 mm longis et lateralibus 2oblongis 0.8 -0.9 mm longis, apice obtusis, inferioribus uno lanceolatis, circa 1.3 mm longis,cetero 1/3 - 1/2 longioribus, corollae albae; petala stipitata; vexilla late obcordata 3.3 - 3.5 mm longa; alae oblongo-obovatae 2.7-2.9 mm longae; carinae oblique ellipticae 2.4-2.6 mmlongae; stamina 10, monadelpha; ovaria seens suturam ventralem pubescentia, stipitata,2-ovulata. Legumina oblonga, 5.5-9.5 cm longa, 1.5-2.2 cm lata, apice obtusa cum acumine, basi cuneata vel angustata, valvis tenuiter coriaceis, reticulatis; semina 1-2,reniformia, complanata, 8 - 13 mm longa, 5 - 9 mm lata.Yunnan : Ximeng , alt. 1 200 m, in forests, 1994, 4, 30. Qian Yiyong 3262 (Holotypus, HITBC, Isotypi, IBSC, SMAO), 3319, 3348.
出处
《热带亚热带植物学报》
CAS
CSCD
1999年第2期151-152,共2页
Journal of Tropical and Subtropical Botany
关键词
黄檀属
西盟黄檀
新种
Dalbergia
Dalbergia ximengensis
New species