Four known alkaloids, aconitine, 3-deoxyaconitine, 3-acetylaco-nitine, penduline and a new alkaloid, named laxiconitine, C26H41NO8, have been isolated from the roots of Aconitum brachypodum var. laxiflorum Flet-cher et Lauener.The chemical structure of laxiconitine was established as (1 ) by IR, 1H NMR, 13C NMR spectral data and chemical reactions.

The essential oil (eucalyptus oil) of Eucalyptus globulus Labill from Yunnan province in China was examined by the exercise of capillary GC/MS/DS on Finnigan-4510 type. The physical properties of eucalyptus oil are as follows: n23/D 1.4617, d21/21 0.8973, [α]21/D + 7.18°.As the result 17 compounds were identified. The major compo- nents are 1, 8-cineole (66.42%), α-pinene (27.l8%), and safrole is not contained in the eucalyptus oil from Yunnan province.

The Hengduan Mountains are situated in the south-east margin of Qingzhang Platcau and cover a 400, 000 5quare-kilometre area lying at 25 o-32°N, 96°-102°E. It is known as a peculiar region to the world because of its topography at high altitude with a variation frorn 2000 to 3000 metres in relative altitudes and the closely arranged mountains stretching from south to north where presents a natural landscape involving subtropical, temperate and arctic zones.

The requirements of nutrient condition for vegetative growth stage and generative growth stage of Lentinus edodes are discussed in this paper.On the basal medium supplemented with 6-BA lmg/l and lactalbumin hydro-lysat 0.2%, the rate of growth and dry weight of mycelium were enhanced.The growth of colony on tlie medium supplemented with 6-BA was better than the medium supplemented with β-ecdysone. When the nutrional level of the sawdust spawn was getting lower, by the addition of 2ppm 6-BA and 3% glu-cose, the differentiation of primordia and the formation of fruit-bodies were promoted. With the addition of carbon-nitrogen solution of different ratio at the base of button the fresh weight of mushroom was increased, with nutrient solution of C/N=30:1 the weight of fresh mushrooms was 73% higher than control.

Lathyrus anhuiensis Y.J.Zhu et R. X. Meng, a new perennial species recently found in Anhui Province of southeastern China, has a very rcstricted distribution and limited in number of individuals. A cytological inve- stigation was carried out promptly in order to reveal the karyotypical chara- cteristics of the plant. The number of chromosomes in root-tip cell of the specics was found to bc l4, agreeing with most of the specics of the same genus heretofore reported. In the light of chromosomal terminology defined by Levan and al., the ka- ryotype formula is K (2n) =14=4m+ 2m (SAT) + 8sm. Photomicrographs of the chromosome complement and the idiogram are shown in Figs. 1-2. Mea- surcments in rnicrons of the chromosome sets are given in Table 1.

Spccies haec, L.sempervivoidei Franch.affinis,a quo foliis margine papil1ari--crencnulatis, ovario viridi (non atropurpureo) differt.Bulbus subglobosus, 3-3.5 cm altus, 3-3.5 cm in diam., squamis ova-tis, 2.5-3.5 cm longis, 2-2.5 cm latis, albis. Caulis erestus 69-80 cm longus, multifolius. Folia anguste linearia vel fere acicularia alterno-dispersa, 3-4 cm longa, 1-2 (-3) mm lata, subtus interdum plus minus muricata, margine papillari-crenulata, costa subtus prominenti.

Anisocapium is a small genus in Athyriaceae. Up to now only two species are known, i. e. Anisocapium sheareri (Bak. ) Ching and A.cu-mingianum Prerl. Anisocapium is mainly distributed in the tropics and subtropics zone in Asia. It reaches as far as the southern part of Gansu province in northwest,the southern part in Korea and Japan in northeast, Java in Indonesia in Southern, Indian peninsula and Srilanka in southwest. (see the distribution range of Anisocapium Presl)

Genus stamine petaloideo,anthera medio filamentorum affixe, folis spira-liter dispositis Costo L. simile, sed vaginia ne clausa, labello cum stamine ad basim in tubum brevem haud juncto, glande epigyna differt.

Proxima F.monanthae Migo, quae planta multo altiore, foliis pro 2/3 longitudinem caulis sparsim dispositis, lobis stigmatis 3.5-5 mm longis differt.Planta pumilior, 16-27 cm longa, bulbis interdum binis, ovoideo-globosis,ca 1.5-2 cm in diam., squamis paucis (2-3), albidis, carnosis. Caulis gla-ber, plerumque 8-foliatus.

Affine A. pseudohuiliensi Chang ex W.T.Wang, sed caule superne 3-ramoso ut ramis flore singulate terminato,bracteis bracteolisque foliaceis,cal-caribus peta1orum praesentibus, staminibus g1abris differt.

Proximum E. filipedi W. T. Wang, quod caule g1abro haud furfuraceo,foliis minoribus 4-7.9 cm 1ongis 1.4-2.5 cm latis, stipulis pedunculis brac-teisque inf1orescentiarum masculinarum glabris differt.

Species A. malaccensi Lam. valde similis, sed fructibus minoribus, extus helvo1o-tomentosis, exocarpiis in sicco rugosis, calycibus persistentibus erectis,seminibus dense ferrugineo-tomentosis, apice obtusis fere erostratis differt.

9种，产美洲温带。我国一种，常见于北方栽培，南方罕见。

The results of these studies may be summarized as follows: Since De Candole separated Genus Corydalis into three subgenera Ca-pnitcs, Capnoides and Leonticoides based upon the forms of the underground organs, there are two different views. Fedde (1936) and Ryberg (1960) did not make any use of subgenera by reason of distinct connections between tube-rous and non-tuberous forms, but Popov (1937) adopted De Candole's views in this respect. He corrected some De Candole's mistakes and conserved Sub-gen. Capnites and Capnoides. Besides the forms of the underground organs he emphasized the characters of cotyledons. Capnites sensu Popoy consisted of the tuherous forms with only l cotyledon in seed, whereas Capnoides provided with taproots, fibrous roots or rhozomes with 2 cotyledons in number. The present authers agree with Popov's classification.