PDF《蝇子草属 ying zi cao shu》

basal rosette of large broad leaves usually present Key

3 36b. Cymules ± equal, forming a ± symmetric thyrse;

basal rosette of large broad leaves usually absent. 37a. Cymules densely clustered;

thyrse appearing capitate 6. S. pseudofortunei 37b. Cymules clearly separated;

thyrse appearing paniculate or racemose. 38a. Cymules long stalked, thyrse appearing paniculate;

petals usually pink. 39a. Calyx shorter than 1.2 cm Key

4 39b. Calyx at least 1.2 cm. 40a. Petal limbs bifid, lobes entire or erose. 41a. Calyx less than 1.8 cm;

leaves oblanceolate 2. S. esquamata 41b. Calyx more than 2.5 cm;

leaves linear or linear-lanceolate. 42a. Petal lobes entire 3. S. dawoensis 42b. Petal lobes erose 4. S. incisa Flora of China 6: 66C100. 2001. 40b. Petal limbs bifid, lobes multifid or laciniate 5. S. fortunei 38b. Cymules shortly stalked, thyrse appearing racemose at least distally;

petals white or yellowish white. 43a. Basal leaves caespitose, not withered at anthesis;

cauline leaves few, without axillary sterile short shoots. 44a. At least some cymules with more than

1 flower 20. S. jenisseensis 44b. Cymules very rarely with more than

1 flower. 45a. Petal auricles ciliate 21. S. graminifolia 45b. Petal auricles not ciliate. 46a. Plants 10C20 cm tall, villous;

leaves 3C6 cm;

calyx 1.5C1.7 cm, hairy at veins 23. S. dumetosa 46b. Plants 20C50 cm, glabrous;

leaves 6C18 cm;

calyx less than 1.2 cm (1.5C 1.8 cm in var. rubescens), usually glabrous at veins 22. S. gracilicaulis 43b. Basal leaves withered at anthesis;

cauline leaves many, with axillary sterile short shoots. 47a. Petals entire. 48a. Leaves ovate-........