峨眉山菊三七属植物二新种

描述了四川峨眉山（菊科）菊三七属二新种,即胖儿参与峨眉菊三七。     

Stachyurus himalaicus ssp.purpureus，a new subspecies of Stachyuraceae from eastern Himalaya

Stachyurus himalaicus ssp. purpureus Y. P. Zhu&Z. Y. Zhang,a new subspecies of Stachyuraceae from eastern Himalaya,is described. It differs from the typical subspecies,S. hi-malaicus ssp. himalaicus,by having purplish pink to dark purple flowers. The new subspecies oc-curs in Xizang（Tibet）of China,E Nepal,Sikkim,Bhutan,and NE India,usually growing in dense forests at an altitude between2200and3300m.     

秀叶苏铁——广西苏铁属一新种

本文发表了一苏铁属新种,即秀叶苏铁,对其特征进行了阐述。     

Opioid receptor agonists in the rabbit colon: comparison of in vivo and in vitro studies

Myoelectrical activity was recorded in the proximal and distal colon of rabbits using chronically implanted electrodes. The motility in both the proximal and distal colon was inhibited by the intravenous (IV) administration of the following opioid agonists for mu receptors: morphine and fentanyl, kappa receptors: ethylketazocine (EKC) and U 50 488 H, and delta receptors: D-Ala2 D-Leu5-enkephalin (DADLE) and D-Ser2 Leu-enkephalin-Thr6 (DSLET). In contrast, the myoelectric activity in the distal colon was increased during the infusion of an endogenous kappa opioid agonist, dynorphin (DYN). All of these effects were prevented by naloxone pretreatment. During in vitro studies using extraluminal force transducers, fentanyl, U 50 488 H and DSLET inhibited spontaneous contractions of the proximal colon, but U 50 488 H and DSLET caused a substantial increase in the motility of the distal colon. The observed motor responses in the proximal and distal colon following opioid agonist administration indicate that the control of these two intestinal segments may be different. It is suggested that the stimulatory effect of dynorphin on the distal colon is peripherally-mediated while inhibition of the whole colon by opioid agonists regardless of subtypes seems to be centrally-mediated.     

云南梅花草属一新种

多年生草本,高8-22cm,细弱。根状茎近圆柱形,径1.5-2.5mm,下部具多数纤维状根。     

云南苞叶兰属一新种

孟连苞叶兰　新种　图 1ＢｒａｃｈｙｃｏｒｙｔｈｉｓｍｅｎｇｌｉａｎｅｎｓｉｓＹ .Ｙ .Ｑｉａｎ ,ｓｐ .ｎｏｖ.(Ｔｒｉｂ .Ｏｒｃｈｉｄｅａｅ ,Ｓｕｂｔｒｉｂ .Ｏｒｃｈｉｄｉ ｎａｅ) .　Ｆｉｇ.1ＳｐｅｃｉｅｓａｆｆｉｎｉｓＢ .ｇａｌｅａｎｄｒａｅ (Ｒｃｈｂ .ｆ.)Ｓｕｍｍｅｒｈ .,ｓｅｄｆｌｏｒｉｂｕｓａｌｂｉｓｖｅｌｐａｌｌｉｄｅｐｕｒ ｐｕｒｅｉｓ,ｓｅｐａｌｉｓ 5 ｎｅｒｖｉｉｓ,ｉｎｔｅｒｍｅｄｉｏａｎｇｕｓｔｅｏｖａｔｏｖｅｌｏｂｌｏｎｇｏ ,1 2～ 1 3ｍｍｌｏｎｇｏ ,4～ 4 .5ｍｍｌａ ｔｏ ,ｅｉｓｌ…     

Paralagarosolen Y. G. Wei,a new genus of the Gesneriaceae from Guangxi,China

Paralagarosolen fangianum Y. G. Wei, a new genus and species of Gesneriaceae from Guangxi, China, is described and illustrated. Paralagarosolen Y. G. Wei is closely related to Lagarosolen W.　T. Wang in having corolla tube cylindric, not swollen, and stigmas 2, but differs by having leaves sometimes peltate at base, cyme with only one flower, corolla lobes rounded-obtuse at apex, and capsule broadly ovoid-ellipsoid.     

黑龙江冷杉属一新变种

发表了黑龙江省东南部产冷杉属一新变种,即粗皮沙松(Abies holophylla Maxim. var. aspericorticea Y. Y. Sun)。     

鄂尔多斯黄鹌菜——黄鹌菜属一新种

发表了黄鹌菜属一新种.     

中国玉兰属两新种

描述了中国木兰科玉兰属两新种,奇叶玉兰(Yulania mirifolia D.L.Fu,T B Zhao etZ.X.Chen,sp.nov.)和青皮玉兰(Yulania viridula D.L.Fu,T B Zhao et G.H.Tian,sp.nov.)的形态特征和分布情况,并与近缘种进行了比较。