Selaginella SELAGINELLACEAE-MARSILEACEAE Isoetes 



2. Selaginella trichoclada Alston (J. B. 70:63) Stems 70cm. tall; fr. IV-XI. China; 

 locally in An. Moist woods, cliffs. 



3. Selaginella braunii Baker (Fa. B. 5:281) Stems 15-35 cm. tall; fr. X. China; 

 locally in Che. Moist woods, cliffs. 



4. Selaginella moellendorffii Hieron. (DeV. F. 39) Stems 15-30 cm. tall; fr. VI1I-XI; 

 lateral lvs. finely serrulate. East Asia; locally in An., Che., Ki., Ku. Moist 

 hillsides. Fig. 3. 



5. Selaginella caulescens (Wall.) Spring ^ffi^ffi (Yen Chou Chuan Pe; Yenchou 

 Spike Moss; Yenchou is a district in Shantung) (DeV. F. 39) Stems 15-30 cm. tall; 

 fr. VIII; lateral lvs. entire, except at base. Asia; locally in Che., Ki. Along 

 mountain streams. 



6. Selaginella labordei Hieron. (DeV. F. 40) Stems 12-25 cm. tall; fr. VII-X; lvs. 

 with white serrulate margins. China; locally in Ki. Wooded hillsides. 



7. Selaginella delicatula (Desv.) Alston Feathery Spike-Moss (DeV. F. 39) Stems 

 20-45 cm. tall; fr. VII-XI; lvs. entire. Asia; locally in An., Che. Moist woods. 



8. Selaginella sinensis (Desv.) Spring (DeV. F. 41) Stems 10-30 cm. long; fr. VIII- 

 IX. China, Manchuria; locally in An. Exposed rocks. Fig. 4. 



9. Selaginella nipponica Fr. & Sav. (Fa. B. 5:272) Stems 4-8cm. long; fr. IV-VII; 

 lateral lvs. ovate, media lanceolate. China, Japan; locally in An., Che., Ki., Ku. 

 By ditches, roadsides, hillsides. 



10. Selaginella heterostachys Baker (DeV. F. 40) Stems 10-12 cm. long; fr. V-VIII; 

 lvs. as in S. nipponica. East Asia; locally in An., Che., Ki. Moist hillsides. 



11. Selaginella uncinata (Desv.) Spring W=S,% (Ts'ui Yiin Ts'ao; Blue Cloud Grass; 

 many of the leaves are bluish green. The character " Ts'ui " refers to the blue 

 of the Chinese Kingfisher) (B. M. 96) Stems 15-45 cm. long; fr. VIII-X; lateral brs. 

 3-8 cm. apart. China; locally in An. Stream banks, woods. 



12. Selaginella remotifolia Spring (S. kraussiana Arnott., non A. Br.) Common Spike- 

 Moss (B. M. 1st. 74; Fa. B. 5:274) Stems 5-20 cm. long; fr. VI-VII; strobili borne 

 along main stem. Asia and East Indies; locally in Ku. Cultivated. 



4. ISOETACEAE Quill wort Family ?K^M (Shui Chiu K'o) 



Aquatic or marsh plants rooting in the mud, with a cluster of aid-shaped lvs. 

 arising from a 2-4-lobed corm, each leaf being a potential sporophyll bearing a 

 sporangium on its inner flattened basal portion, megasporangia and microsporangia in 

 definite zones: sporangia 4-7 mm. long, oblong, deeply sunken in leaf tissue, the upper 

 end and sides of the sporangium often covered by a "velum" or flap: a triangular 

 ligule borne above the sporangium. One genus. 



1. Isoetes Linn. i}\WM (Shui Chiu Shu; Water Leek Genus) 



Characters of the family. 80 species. (Greek name used by Pliny, presumably 

 for a house leek.) 



1. Isoetes sinensis Palmer (A.F.J. 1927:3) Lvs. 15-25 cm. long; VI-X; corm 3- 

 lobed; velum absent. China, Japan; locally in Ku. On bottom of ponds. 



5. MARSILEACEAE MPt (P'in K'o) 



Small subaquatic ferns, rooting in mud: rhizome creeping, hairy: leaves linear, 

 or with 2 or 4 leaflets: sporangia borne in sporocarps on the stipes or at their bases: 

 each sorus bearing both megasporangia and microsporangia. 3 genera. 



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