腺花蛛毛苣苔——中国苦苣苔科蛛毛苣苔属一新记录种

报道了中国苦苣苔科蛛毛苣苔属一新记录种——腺花蛛毛苣苔(Paraboea glanduli flora Barnett)并提供了形态描述和野外生态照片,讨论了该种与近缘种类间的区别.该种为亚灌木状草本,无基生叶,聚伞花序2～4枝成对着生于茎顶叶腋,花冠密被腺毛,在该属中较为特殊.     

泰国蛛毛苣苔属一新种

布氏蛛毛苣苔 新种 Paraboea burttii Z. R. Xu, sp. nov. Fig. 1 P. capitatae Ridley proxima, sed foliis supra pubescentibus, bracteis valde majoribus,sepalis obovatis et majoribus differt. Herba perennis rosulata, brevi-caulis vel acaulis; caules ad 15 cm longi 7 mm in diam.     

越南蛛毛苣苔属(苦苣苔科)植物新记录

报道了2个苦苣苔科(Gesneriaceae)蛛毛苣苔属(Paraboea)(C.B.Clarke)Ridl.植物在越南的分布新记录,并列出了每个种的标本引证和地理分布情况.     

云南东南部苦苣苔科植物一新种——南溪蛛毛苣苔

中越边境的石灰岩地区不仅具有较丰富的植物多样性,而且特有现象十分突出。该文描述了中越边境石灰岩地区位于云南东南部河口境内的苦苣苔科一个植物新种——南溪蛛毛苣苔(Paraboea nanxiensis Lei Cai & Gui L. Zhang)。该新种在叶片的形状和毛被、花的颜色、花序短于叶片以及雌蕊无毛等性状上与产自广西那坡的垂花蛛毛苣苔(P. nutans D. Fang & D. H. Qin)最为相似。两者的主要区别在于:该新种的花萼裂片先端最宽且光滑无毛,花冠浅宽钟形、花冠筒不明显、花冠管内面基部白色,花丝无毛以及蒴果稍微扭曲; 该新种生于云南海拔530～610 m的河口及马关一带,而垂花蛛毛苣苔产于广西那坡的海拔900～1 150 m段的石灰山。此外还讨论了该新种与蛛毛苣苔属其他几种基生叶类型的近缘种[如三萼蛛毛苣苔(P. trisepala W. H. Chen & Y. M. Shui)、蔓耗蛛毛苣苔(P. manhaoensis Y. M. Shui & W. H. Chen)及河口蛛毛苣苔(P. hekouensis Y. M. Shui & W. H. Chen)]的区别,并提供了相关物种的彩色图片及区分说明,主模式标本存放于中国科学院昆明植物研究所标本馆(KUN)中。近年来,由于中越边境的石灰岩地区不断有新分类群或新记录物种的发现,所以很有必要加强对该区域的植物多样性考察。     

唇冠芒毛苣苔--中国芒毛苣苔属一新记录种

唇冠芒毛苣苔Aeschynanthus hildebrandii Hemsl. ex Hook. f. 在中国首次记录.     

卷丝苣苔和勐醒芒毛苣苔抗氧化活性研究

利用3种方法DPPH、ABTS和FRAP分析两种苦苣苔科植物卷丝苣苔和勐醒芒毛苣苔提取物总抗氧化作用.在4种提取物中,卷丝苣苔甲醇提取物对DPPH自由基的清除能力(IC50=4.92μg/mL)比阳性对照BHT作用强(IC50=18.79 μg/mL);卷丝苣苔甲醇提取物对ABTS自由基的清除能力(IC50=11.10 μg/mL)比BHT(IC50=6.04 μg/mL)略低;卷丝苣苔甲醇提取物还原Fe3+的能力(FRAP=2403.77±38.05 μmol TE/g)比BHT(FRAP=1748.49±3.46 μmol TE/g)高.在4种提取物中,卷丝苣苔甲醇提取物抗氧化能力最高.     

唇冠芒毛苣苔——中国芒毛苣苔属一新记录种

唇冠芒毛苣苔 Aeschynanthus hildebrandii Hemsl.ex Hook.f.在中国首次记录。     

卷丝苣苔和勐醒芒毛苣苔脂肪酸成分的研究

用索氏提取法提取,甲酯化处理后采用气相色谱-质谱联用技术首次对卷丝苣苔(Corallodiscus kingianus)和勐醒芒毛苣苔(Aeschynanthus mengxingensis)中脂肪酸成分进行了分析.从卷丝苣苔的脂肪酸成分中鉴定出33个化合物,占检出物总质量分数的95.44%,主要成分为9,12-十八碳二烯酸、(Z,Z,Z)-9,12,15-十八碳三烯酸、十六烷酸.从勐醒芒毛苣苔的脂肪酸成分中鉴定出30个化合物,占检出物总质量分数的94.23%,主要成分为14-甲基-十五烷酸、(E)-9-十八碳烯酸、10,13-十八碳二烯酸.二者有15个组分是相同的.     

亮花芒毛苣苔在中国的发现及近缘种花粉形态研究

该文报道了中国苦苣苔科(Gesneriaceae)植物分布新记录种,即亮花芒毛苣苔(Aeschynanthus fulgens Wall. exR. Br.),同时描述了该新记录种的分类学特征,并提供了该新记录种的引证标本和图片。此外,还比较了该新记录种与束花芒毛苣苔(A. hookeri C. B. Clarke)的花粉形态特征,发现二者花粉形态及纹饰存在显著差异。凭证标本保存在河南农业大学植物标本馆(HEAC)中。     

广西半蒴苣苔属（苦苣苔科）一新种——红苞半蒴苣苔

报道了在广西发现的苦苣苔科半蒴苣苔属Hemiboea一新种,即红苞半蒴苣苔H. rubribracteata Z. Y. Li & Yan Liu。该新种叶形与贵州半蒴苣苔H. cavaleriei Lévl.相近,不同在于茎较粗且坚硬,总苞红色,萼片较长,花冠外面白色,无毛,下唇3裂至中部。     

Revisione delle specie: Actinomyces albus,A. chromogenus,A. odorifer,A. thermophylus,A. viridis,A. viridochromogenes,A. hominis,A. innominatus

Riassunto Lo studio comprende una revisione critico-sperimentale della specie Actinomyces albus, della quale vengono considerati come sinonimi circa 30 nomi speeifici, fra i quale A. chromogenus, A. odorifer, A. thermophylus p.p.; della specie é data una diagnosi ed una particolareggiata descrizione.Sono inoltre studiate le specie A. viridis, (= A. viridochromogenus) e A. innominatus, n. nomen. Quest'ultima é preceduta da una breve discussione sulla specie A. homini.

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Summary Twenty-six strains of Actinomyces albus are studied redescribed from morphological, cultural and biochemical standpoints. Many biological activities of A. chromogenus, A. odorifer and A. thermophilus are in common with other species of the same genus, so that they may be considered for sub-specific, (not specific) differentiation. A discussion on A. farcinicus, A. albidoflavus and A. aureus has been originated from mislabeling as A. albus; the group including the two last named species (flavus group) must be revised. A few strains classified A. farcinicus are in no doubt true A. albus, but this real specific entity remains to be revised from Nocard's strain. A. viridis, for the first time described by Lombardo-Pellegrino, has been redescribed three times as a new species under the same binomial, and the fourth as A. viridochromogenes. A. hominis Bostroem is an uncorrect determination for the species originally described by Waksmann and Curtiss, and it is renamed A. innominatus, the binomial A. (Streptothrix) hominis Auct. being a nomen ambiguum. In conclusion, 30 bionmial are appended in sinonimy to A. albus, including Cladothrix dichotoma Macé (1888) non Cohn, G. invulnerabilis Acosta et G. Rossi, C. odorifera Rullm. Actinomyces chromogenus Gasp., A. thermophilus Auct., p.p., A. (Streptothrix) Sanninii (Cif.) Westerd., A. Almquisti Duché, A. Gougeroti Duché, and so on.