Salix Sect. Subviminales in Flora of China @ efloras.org

31. Salix Sect. Subviminales (Seemen) C. K. Schneider, Ill. Handb. Laubholzk. 1: 66. 1904.

细柱柳组 xi zhu liu zu

Salix [unranked] Subviminales Seemen, Salic. Jap. 20. 1903; sect. Gracilistylae C. K. Schneider.

Shrubs rarely creeping. Branchlets at first pilose, glabrescent. Leaf blade obovate, narrowly obovate-oblong, or obovate-elliptic, rarely suborbicular, margin serrate, rarely entire. Flowering precocious. Catkins terete or ellipsoid, sessile; bracts 2-colored or nearly black, ovate to narrowly oblong-lanceolate. Male flower: gland solitary, adaxial; stamens 2, rarely connate throughout, or only filaments connate or partly connate; anthers red. Female flower: ovary densely pubescent, sessile; style slender, rarely short; stigma narrowly oblong.

A. K. Skvortsov indicates that this is a very heterogeneous section. Of it, Salix lanifera, S. myrtillacea, and S. taoensis seem to be more related to sect. Caesiae, while S. obscura may belong to sect. Vimen.

Key based on female plants

1 Shrubs creeping or erect, less than 50 cm tall 236 Salix lanifera

+ Shrubs more than 1 m tall. (2)

2 (1) Gland oblong or ovate-oblong. (3)

+ Gland terete, ca. 1 mm. (4)

3 (2) Style ca. 1/2 as long as ovary or slightly longer 234 Salix myrtillacea

+ Style ca. 1/3 as long as ovary or shorter 233 Salix rhododendrifolia

4 (2) Style longer than or nearly as long as ovary; fruiting catkin to 8 cm 238 Salix gracilistyla

+ Style shorter than ovary; fruiting catkin 2.5-3(-4) cm. (5)

5 (4) Style ca. 1/2 as long as ovary; young leaves abaxially sericeous 235 Salix obscura

+ Style ca. 1/3 as long as ovary; young leaves not abaxially sericeous 237 Salix taoensis

List of Keys

Lower Taxa