1648 



SELAGINELLA 



SELAGINELLA 



GG. Stems 6-12 in. high, 

 not curling in 



rosettes 22, 



GGG. Stems elongated (2 

 ft. or more), not 

 crowded. 

 H. Lvs. equal-sided at 



base 23. 



24. 

 HH. Lvs. produced on 



upper side at base.25. 

 26. 



CCC. Main stems climbing 27. 



CCCC. Main stems erect, the branches 

 confined to the u]}per portion, 

 naked below. 

 D. Stems not jointed. 



E. Color of stems straw-col- 

 ored, or at most only 

 pink-tinted. 

 F. Lvs. long, the ultimate 

 divisions of stem %-% 



in. wide 28. 



FF. Lvs. shorter or minute; 



the ultimate divisions 



of stem one - sixth to 



one-twelfth in. wide. 



G. Plants usually less 



than a foot high 29. 



GG. Plants 1-2 ft. high... 30. 

 31. 

 32. 

 33. 

 34. 

 35. 

 36. 



Emmeliana 



Wallichii 

 Victoriae 



gracilis 



Lobbii 



Willdenovii 



grandis 



EE. Color of stems crimson 



viticulosa 

 caulescens 

 Braunii 

 flabellata 

 Vogelii 

 Lyallii 

 erythropus 

 hsematodes 

 DD. Stems jointed in lower two- 

 thirds 37. geniculata 



BB. Foliage of spike of two kinds, the 

 smaller forming a lotver plane, 



the larger an upper 38. cordifolia 



39. molliceps 



1. rup6stris, Spring. A small, rock-loving perennial, 

 with branching stems 4-5 in. long, many-ranked lvs. 

 ending in a white awn, and square, 4-angled spikes.— 

 Native of the eastern half of the United States, but re- 

 placed by many allied species in the Rocky Mts. and on 

 the Pacific coast. The writer has separated 6 of these 

 and Dr. Hieronymus, at Berlin, has recently character- 

 ized 10 others. 



2. denticulata, Link. Fig. 2303. Stems less than 6 in. 

 long, matted: lvs. of the lower plane slightly spaced, 

 denticulate, cordate on the upper side at base and im- 

 bricated over the stem; lvs. of upper plane cuspidate. 

 Mediterranean region throughout. —Trade names are 

 vars. aurea and fdliis variegatis. 



3. Serpens, Spring. Stems 6-9 in. long, trailing, bright 

 green, copiously branched : lvs. of lower plane crowded, 

 obtuse, spreading, ciliated at the rounded base; lvs. of 

 upper plane obliquely oblong, acute. West Indies.— 

 Long in cultivation. 



4. pAtula, Spring (S. sarmentbsa, A. Br.). Stems 

 slender, trailing, pale green, 6-9 in. long, with long, 

 tail-like tip, and fewer short pinnate branches: lvs. of 

 lower plane crowded, erect-spreading, oblong-lanceolate, 

 somewhat acute; lvs. of lower plane one-third as long, 

 acute. Jamaica. 



5. uncin^ta, Spring (Lycopbdium cwsium and Selagi- 

 nilla caesia, Hort.). Stems 1-2 ft. long, extending in a 

 somewhat naked tip beyond the branches, doubly 

 grooved above, with short, alternate branches : lvs. 

 thin, blue-green, with a distinct midrib, slightly more 

 produced on the upper side; lvs. of upper plane c\ispi- 

 date, much imbricated. China. — In 1893 John Saul 

 offered "(S. ca>sia. arborea" with the remark Ihat S. 

 laevigata was a synonym thereof. 



6. plumdsa, Baker. Stems 6-12 in. long, flat above, 

 often forked near the base: lvs. of lower plane close, 

 bright green, much more produced on iipper side of 

 midrib, ciliated on both sides at base; lvs. of upper 



plane half as long, ovate, much imbricated. India, Cey- 

 lon, China, Malay Isles. 



7. concinna, Spring {S. serruMta, Spring). Stems 

 1 ft. or more long, copiously pinnately branched, with 

 more or less fan-shaped compound branches: lvs. of 

 lower plane crowded, bright green, glossy, much dilated 

 and rigidly ciliate on the upper side at base; lvs. of 

 upper plane one-third as long, long-cuspidate, much 

 imbricated. Mascarene Islands. — Var. foliis variegatis, 

 Hort., is cultivated. 



8. stolonifera, Spring. Stems a foot or more long, 

 with a more or less naked tip, angled above and below, 

 with short, compound branches: lvs. of lower plane 

 closely set, rigid, acute, short-ciliate and minutely auri- 

 cled at base. West Indies. 



9. Kraussiana, A. Br. Stems 6-12 in. long, flat on the 

 back, rounded on the face, copiously pinnate, with 

 compound branches: lvs. of upper plane spaced on the 

 branches and main stem, acute, slightly imbricated over 

 the stem; lvs. of upper plane obliquely ovate, acute. 

 Africa, Madeira. — /S. Brbwnii, Hort., is a dwarf form 

 from the Azores. Vars. atirea and variegd,ta are 

 American trade names. 



10. Cunninghami, Baker. Stems copiously pinnate, 

 the lower branches compound: lvs. of lower plane ovate 

 or oblong, cordate and very unequal-sided at base, 

 much imbricated over the stem; lvs. of upper plane 

 distinctly cuspidate. Brazil. 



11. Brasili6nsis, A. Br. Stems copiously pinnate, the 

 lower slightly compound: lvs. of lower plane mostly 

 spaced, acute, cordate at base, ciliate and imbricated 

 over the stem; lvs. of upper plane half as long, cuspi- 

 date. Brazil. — Similar to preceding, but with longer 

 leaves. 



12. d,pus, Spring. Stems 1-4 in. long, angled above, 

 with short, simple or forked branches: lvs. of upper 

 plane pale green, serrulate but not ciliate, cordate on 

 the upper side; lvs. of the upper plane ovate. Canada 

 to Texsis.—Lycopodiumdensum, cultivated at the Har- 

 vard Botanic Garden, is said to belong here. 



13. dlbo-nitens, Spring. Stems slender, trailing, the 

 lower branches slightly compound : lvs. of lower plane 

 spaced on main stem, short-ciliate, bright green; lvs. of 

 upper plane one-third as long, cuspidate. West Indies. 



2303. Club Moss used to cover the s.oil of an orchid pot — 

 Selaginella denticulata (X 34). 



14. atroviridis, Spring. Stems 6-12 in. long, ascend 

 ing, doubly grooved above : lvs. of lower plane spuriously 

 3-nervod, firm, broadly rounded; lvs. of the upper plane 

 half as long, long-cuspidate, much imbricated. India. 



15. Calif6mica, Spring. Stems 4-6 in. long, 4-anglcd, 

 copiously pinnate: lvs. of lower plane ovate, minutely 



