Anthurium andreanum was one of the best indoor ornamental plants. Two cultivars of Anthurium andreanum (Pink Champion, Alabama) were used to investigate the effects of light quality on physiological and biochemical indexes. There were six different light quality treatments: Fluorescent Daylight Lamp (CK), and RB (100% Blue, 60% R + 40% B, 70% R + 30% B, 80% R + 20% B, 100% Red) provided by light emitting diodes (LED). The results showed that blue light was beneficial to shoot growth and dry matter accumulation, photosynthetic rate, soluble sugar, and POD activities. Red light was beneficial for the synthesis and accumulation of soluble protein, and could promote root growth. ‘Pink Champion’ and ‘Alabama’ obtained the relatively better morphological parameters, chlorophyll contents, photosynthetic parameters, and antioxidant enzyme activities in 7:3 and 6:4 treatments. The antioxidant enzyme (POD, SOD) activities under composite light of red and blue treatments were better than that of monochromatic red, blue light treatments and CK on the whole. Comprehensive evaluation showed that the treatment of 7:3 was a suitable light environment indoors and could be used as the preferred light quality ratio in the production and application of Anthurium andreanum.
Clematis danxiacola , a novel species of Ranunculaceae discovered in the Danxia landform area of Zhejiang, China, is described and illustrated herein. This species exhibits morphological similarities to C. terniflora and C. chinensis , but can be distinguished by specific characteristics, including the indumentum of leaflet blades, sepal apex morphology, stamen and pistil quantities, and achene morphology and dimensions. The plastome of C. danxiacolasp. nov. extends 159,506 bp and contains two inverted repeats of 31,040 bp, separated by a large single-copy region of 82,836 bp and a small single-copy region of 18,407 bp. The analysis revealed 136 functional genes, including 92 protein-coding genes, 36 tRNA genes, and 8 rRNA genes. Phylogenetic analyses demonstrated that C. danxiacola shares close evolutionary relationship with C. terniflora and C. chinensis .
Alnus betulifolia G.Y. Li, Z.H. Chen & D.D. Ma (Betulaceae), a new species of Betulaceae from Zhejiang, eastern China, is described and illustrated. It is similar to the Japanese endemic A. firma, but differs from it by being a shrub, often 2–3 m tall, and by having male inflorescences single and compact, and female inflorescences usually single or double in lateral branches above male inflorescences.
Weizhia gen. nov. (Fabaceae) is here described as a new monotypic genus with the sole species W. pentaphylla sp. nov. from Zhejiang Province, East China. Both morphological and molecular phylogenetic evidence (nrITS + cpmatK) suggest that it is closely related to Dumasia and Toxicopueraria within the subtribe Glycininae (Fabaceae: Phaseoleae), but mainly differs by having usually pinnately 5-foliolate leaves and spurred wing-petals. A key to all genera of Glycininae currently recognized is also proposed. The new species is considered to be Critically Endangered according to IUCN categories and criteria, and in need of urgent protection.