374 



815. APHYLLANTHES. 



815. APHYLLANTHES. 



1. monspeliensis. Scape naked. Fl. 

 1-2, sessile, surrounded by scariose scales, p. 

 5, 6. Stony, mdt. Er. Nice. 



816. JUNCUS. 



A. Plants with numerous Barren Stems, 

 sheathed at base, but (except in J. Jac- 

 qidni) leafless. 



i. Seeds with appendages. Sp. 1-4. 



ii. Seeds without appendages. Sp. 5-13. 



B. No Bai-ren Stems. Seeds with Appen- 

 dages. 



i. Bracts shoi-t. Head evidently terminal. 



Sp. 14-17. 

 ii. Bracts 2 or 3, long, setaceous. Sp. 



18, 19. 



C. No Barren Stems. Seeds without ap- 

 pendages. 



i. Elowers clustered. 



a. L. fistulose, without interruption. 

 Sp. 20. 



b. L. fistulose, compresso-terete, divided 

 into cells. Sp. 21-30. 



c. L. channeled, setaceo-subulate. Sp. 

 31-35. 



ii. Flowers solitary. Sp. 36-43. 



A. Plant with subulate barren stems, with 

 sheaths, but {except in J. Jacquini) with- 

 out L. 



i. Seeds with appendages ; the covering being 

 extended into a sort of bag on each side. 



1. acutus. Stems very pungent. Pan. 

 supradecompoand, crowded (falling short of 

 stem, Guss.). Inner Sep. very obtuse or emar- 

 ginate. Caps, subglobose, acuminate, twice as 

 long as calyx, p. 7, 8. Sandy shores. Some- 

 what rare. 



2. xnultibracteatus. "Stems pungent. 

 Pan. supradecompound, lax. Stalks unequal, 

 few-flowered, exceeding the 2-leaved involucre 

 (the apparent stem). Bracts unequal, filiform, 

 mucronate. Caps, oblong, beaked, twice as 

 long as sepals, p. 5, 6. Moist. Castro 

 Nuovo, Sic." — Guss. 



3. maritiiuus. Stems rather pungent. 

 Pan. lax, decompound. Sep. acute, as long as 

 elliptic, mucronate capsule, p. 7, 8. Salt 

 marshes. 



0- rigidus. El. fewer. Sep. setaceo-acu- 

 minate. 



4. Jacquiui. Fertile Stems with a single 

 L., often remote from flowers. Head 4-8- 

 flowered, stalked. Sep. lanceolate, half as long 

 as acute capsule, p. 6, 7. High moist. Alps. 



ii. Seeds without appendages. 



5. effusus. Stem smooth, with continu- 

 ous pith. Pan. lax, decompound, many-flow- 

 ered. Sep. very acute. Stamens 3. Caps, 

 obovoid, refuse, the very short base of style 

 remaining in a terminal hollow, p. 6, 7. 

 Hoist clayey. 



6. con^lomeratus. Stem smooth, with 

 a continuous pith. Pan. crowded, decom- 

 povmd. Sep. very acute. Stamens 3. Caps, 

 obovoid, refuse. Base of Style remaining on 

 a little tubercle, p. 6, 7. Moist clayey. 



7. diffusus. " Stem finely striate, green 

 {not glaucous) above the dark-purplish sheaths. 

 Pith continuous. Pan. crowded, decompound. 

 Sep. very acute. Stamens 6. Caps, obovoid, 

 mucronate with the persistent style, p. 6, 7. 

 Ditches." — Koch. Apjparently not very rare 

 in a moist clayey soil, but botanists are not 

 agreed on the value of the separate charac- 

 ters. 



8. balticus. Stem quite smooth. Sheaths 

 at base of a pale drab. Pith continuous. 

 Pan. decompound, diffuse, many-flowered. 

 Sep. mucronate ; the inner subobtuse. Caps, 

 elliptic, obtuse, mucronate. p. 7, 8. Shores. 

 e. Scot. n. G. 



9. g'laucus. Stems scored. Sheaths at 

 base polished, dark chestnut. Pith interrupted, 

 forming cells. Pan. decompound. Branches 

 neai'ly alike. Sep. very acute. Caps, oblongo- 

 elliptic, obtuse, mucronate. p. 6-8. Moist 

 clayey,. It is said that this sometimes occtirs 

 with continuous pith, and sometimes the stem 

 is only finely striate: when these characters 

 are united, it would be difficult to distinguish 

 the plant from J. diifusns. 



10. paniculatus. Stems scored. Pith 

 interrupted. Pan. decompound, lax. Outer 

 Branches prolonged, proliferous. El. remote. 

 Sep. very acute. Caps, oblongo-elliptic, ob- 

 tuse, mucronate. p. 7, 8. Shores of Adi-iatic. 

 — Koch. 



11. fistulosus. Stem quite hollow, smooth 

 or finely striate. Corymb supradecompound, 

 spreading. Sep. lanceolate, acuminate. Caps, 

 ovoid, acutely 3-edged. p. 5, 6. Streams. 

 Palermo. 



12. arcticus. Stem smooth, stifi' and 



