Juncaceae Vent. 



Juncus bufonius L. Spec. PL ed. II (1762) p. 466; Ledeb. Fl. Alt. II, p. 48; Turczan. 

 Cat. Baical. no. 1166; Karel. et Kiril. Enum. PL Fl. Alt. no. 875; Ledeb. Fl. Ross. IV, p. 

 231; Turczan. Fl. Baical.-Dahur. (1855, II) p. 305, no. 1195; Buchenau, Juncaceae in 

 Engl. Pflanzenr. H. 25 (IV, 36, 1906) p. 105; KpBM. $ji. Ajit. VI (1912) p. 1404. 



Very common in the explored tracts of Siberia and the Urjankai country, where 

 occurring on moist ground, along roads, in court-yards, along borders of fields, etc., 

 and flowering from June to August. Besides f. typicus Aschers. et Graebn. Synops. Mit- 

 teleurop. Fl. H, 2 (1904) p. 421, there also occur forms with very low stems, and seve- 

 ral flowers densely congested, f. fasciculatiis Koch, Synops. ed. I (1837) p. 732. 



At Ust Kamuishto, I have collected a form of this one, with low stems, from 4 to 13 

 cm. high, and which is especially distinguished by having the inner perianth leaves con- 

 siderably shorter than the outer ones, and generally somewhat more obtuse at the sum- 

 mit, but never distinctly rounded. The outer perianth leaves are 4 to 5 mm. long, always 

 markedly longer than the capsule, tapering upwards, and finely mucronate, furnished 

 with a distinct dorsal nerve drawn out into a fine point. The inner perianth is 2 — 3 

 mm. long, equalling or a little shorter than the ripe capsules, and with a midrib not 

 quite levelling the summit of the leaf, which is scarious-margined. The flowers are 

 either single or 2 — 3 together. The ripe capsule is light straw-coloured, not of a chestnut 

 colour. The lower leaf-sheaths have a more or less markedly reddish tinge. This form 

 approaches much var. halophilus Fernald et Buchenau in Rhodora VI (1904) p. 39, 

 and is possibly identical with f. ranarius Songeon et Perkier in Billot, Annotations 

 Fl. France et AUem. (1859) p. 192, which is considered by Buchenau, L c, to be inter- 

 mediate between var. genuimis and var. halophilus. The soil at Ust Kamuishto is 

 slightly saline. 



Distribution: Nearly all over the globe, except the most frigid regions. 



Juncus compressus Jacq. Enum. Stirp. Vindobon. (1762) p. 60 et 235; Buchenau, 

 Juncaceae in Engl. Pflanzenr. H. 25 (IV, 36, 1906) p. Ill; Ledeb. Fl. Ross. IV, p. 229; 

 Turczan. Fl. Baical.-Dahur. (1855, II) p. 304, no. 1193; Kpi,i.i. $j. A.it. VI (1912) p. 1408. 

 Juncus bulbosus L. Spec. PL ed. II (1762) p. 466; Ledeb. Fl. Alt. H, p. 48; Turczan. Cat. 

 Baical. no. 1167; Karel. et Kiril. Enum. PL Fl. Alt. no. 876. 



Rather common in moist meadows, along road-sides, etc. about Minusinsk, Ust 

 Abakansk, Ust Kamuishto, Askys, and Kushabar. Flowering and with ripe fruits in 

 June and July. 



Distribution: Europe, and temperate portions of Asia. 



Juncus Gerardii Loiseleur in Journ. de BoL III (1809) p. 294; Buchenau, Juncaceae 

 in Engl. Pflanzenr. H. 25 (IV, 36, 1906) p. 112; Ledeb. Fl. Ross. IV, p. 229; Kptu. $ji. 

 A.1T. VI (1912) p. 1409. Juncus botnicus W^ahlenb. Fl. Lapp. (1812) p. 11; Ledeb. Fl. AU. 

 n, p. 49; Karel. et Kiril. Enum. PL Fl. Alt. no. 877. 



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