The taxonomy of Cheilanthoid ferns is difficult due to morphological convergence， and there are only five species in Paragymnopteris， the taxonomy of this genus is still controversial with its members assigned to several different genera by different scholars. In this paper， the phylogenetic relationships between Paragymnopteris and other cheilanthoid fernsbased on the datasets of seven tandem chloroplast gene segments， the chloroplast genome， and the ribosomal DNA were investigated， respectively. The results showed that these three genera formed a well-supported monophyletic clade and constituted the pellaeoid group. The five species of Paragymnopteris formed two clades and each clustered with members of Pellaea. Based on the above results， this study suggested that the Pellaea should be redefined and incorporated with the Paragymnopteris into the same genus.

A species named Corydalis bulbilligera C.Y.Wu of sect. Elatae Fedde，from Shaanxi Province is newly recorded. Complementary description on the morphology， especially fruit characteristics， of C. nanwutaishanensis Z.Y.Su & Lidén and C. virginea Lidén & Z.Y.Su， which were endemic to Shaanxi province， was provided. The morphological comparison of the above mentioned three species was made， and the key table of species classification of sect. Elatae in Shaanxi Province was also compiled.

Primula lithophila was an early species published on plant specimens， and curremt literature of its phenological period and many biological characteristics were incorrectly described， which made it difficult to define the species. This study adopted methods such as field investigation， literature review， specimen collection， and morphological feature comparison in the type locality， the supplementary description of its phenological period and biological characteristics was provided. The results indicated that： the petioles of P. lithophila did not have wings， and color was pink with few white， scape 10-25 cm length， pedicel 15-30 mm length， corolla tube about 16 mm and limb diameter 10-15 mm respectively. Capsule tubular， about 3 mm long， approximately half long of the persistent calyx. The flowering period was from September to February， and the fruiting period was from March to June. In addition， two new recorded species： P. pelargoniifolia G.Hao， C.M.Hu & Z.Y.Liu and P. tardiflora（C.M.Hu） C.M.Hu， were reported.