毛枝藻属一新种

本文报道了丝藻目、胶毛藻科、毛枝藻属的一新种—卵孢毛枝藻，此种采自我国云南省和四川 省。此藻类由狭卵形的孢子囊产生动孢子进行无性生殖，在毛枝藻属的生殖中，营养细胞和生殖细胞分化是一种进化类型。     

葡萄属一新种

One new species of the genus Vitis (Vitaceae) is described from Anhui Province, China. It is vitis jinzhainensis X. S. Shen.     

绞股蓝属一新种

One new species of the genus Gynostemma, G. pallidinerve Z. Zhang, is described  from southeastern Anhui, China.     

西藏沿阶草属一新种

There are eleven species of Satyrium hitherto reported in China, among which, after a detailed examination of herbarium specimens consisting of about 300 plants, only four forms, represented by S. nepalense D. Don, S. ciliatum Ldl., S. setchuenicum Kranzl. and S. yunnanense Rolfe, are susceptible of division. S. nepalense is a wides- pread species with its main distribution centre in indian region, whereas the other three, with which the present paper deals, are largely distributed in our country.       S. ciliatum is characterized by its pink flowers with spurs about half as long as the ovary.  It is usually found in mountain meadows at an altitude between 1900- 4100m. from Szechuan through Kweichow, Yunnan  and  Tibet,  southwestward  to Sikkim and Bhutan. In all its flowers examined, both female and male organs are perfect and many have produced capsules. It is, no doubt, the hermaphrodite form as seen in the ordinary orchids.       S. setchuenicum closely resembles S. ciliatum in habit, distinguished mainly by having flowers without or with short spurs.  These two forms are sympatric.  In our herbarium, for instance, they are sometimes found on a same specimen or the different sheets with the same field number, such as Y. Tsiang 11454, R. C. Ching 24184, T. P. Wang 9497, etc.  A detailed comparison shows that in S. setchuenicum the anther and pollinia are abortive or even entirely absent, and the stigma is larger than  the rostellum which usually partly thickens and becomes some-what stigma-like, while in S. ciliatum the male organ is well developed, and the thin rostellum is larger. Between these two forms several intermediates are found. It is quite certain that they are dif- ferent sexual forms belonging to one and the same species, and so called S. setchuenic- um is but a female form of S. ciliatum.      Another sympatric form is S. yunnanense, characterized by its yellow flowers with somewhat horizontally extended spurs.  Its anther, pollinia and rostellum are very similar to those of hermaphrodite form of S. ciliatum, but the ovary is narrower and the stigma is usually smaller.  It is interesting to note that in all specimens examined consisting of 36 individuals, no fruit can be found, while in those of S. ciliatum, includ- ing both female and hermaphrodite forms, the lower flowers of the racemes are mostly found to have produced fine seed-capsules. From  these  facts we  may confidently regard this species as the male form of S. ciliatum.      Thus, we have three separate sexual forms in S. ciliatum, to which eight specific names previously recorded in China are here referred. Detailed discussion and descrip- tion as well as a key to the chinese species are given as above. Its geographical distribu- tion is mapped.  The flowers of these three forms are illustrated.  All the specimens cited here, with a few exceptions, are deposited in the herbarium of Institute of Botany,Academia Siaica.     

Gilbertella属的一个新种

 A species of Gilbertella was isolated from dung of swine collected from  Hainan, Kwangtung Province, and described as a new species (Gilbertella hainanensis sp. nov.).      Morphologically, it differs from G. persicaria, the only other species of Gilbertella, mainly in spore characters.  The spores of G. persicaria are oval  to  nearly spherical, often pointed and bearing 3-6 appendages at each end; while those of the present species are elongate-oval, reniform or oval, with ends obtuse, never pointed and bearing 6-12 appendages.  The appearances of the two species in culture are also different.  In colour G. persicaria is grayish-brown and G. hainanensis is blackish-gray.      When inoculated on peach fruit, G. hainanensis causes no rot, while all strains of G. persicaria isolated from various kinds of substratum readily cause rotting  of the  entire peach in 5-6 days.      The culture of G. hainanensis at hand, being a minus strain, has been found to form mature zygospores when grown together with the plus strain of G. persicaria.  The two suspensors of the zygospore thus formed are heterogeneous either in shape or in dimen- sion, one of the suspensors closely resembles those of G. persicaria, while the other is quite different.      Type culture of G. hainanensis is deposited in the Institute of Microbiology, AcademiaSinica, Peking, China.     

贵州竹亚科一新种

 One new  species of the genus lndocalamus (Bambusoideae) is describedfrom China . It is lndocalamus chishuiensis Y. L. Yang et Hsueh.