COHORTS AND OEDEES. (BY THE ED1TOE.) 



1021 



44. JUNCE^;. Perianth of 6 coriaceous or 

 sub-scarious equal leaflets. Stamens 6 or 3, 

 in the base of the perianth -segments ; anthers 

 basifixed. Ovary 1 -3-celled ; ovules few 



PAGE 



basal, or many axile. Capsule loculicidally 

 3-valved. Herbs, stemless or with a slender, 

 rarely stout stem; leaves narrow, nerves 

 striate ...... .863 



Cohort XII. Pontederales. Flowers ? , spiked, panicled or capitate. Perianth of 

 2 segments or of 6 2-seriate segments, all petaloid, or 3 outer herbaceous or coriaceous, 

 and 3 inner petaloid. Style single; stigma sub-entire. Embryo immersed in copious 

 albumen (not external to or in a lateral cavity of the albumen). Marsh or water herbs. 



45. RAPATEE^;. Perianth regular; outer 

 segments short, coriaceous or scarious ; inner 

 long-clawed, petaloid. Stamens 6, in pairs 

 opposite the inner perianth-segments; anthers 

 basifixed, opening at the apex. Ovary 3- 

 celled. Leaves linear, equitant . 



46. PONTEDERIACE^;. Perianth irregular; 

 segments 6 ; all petaloid. Stamens inserted 

 on the perianth, either 6, or 3 and then 



865 



opposite the inner segments. Ovary 3-celled, 

 2 cells often empty. Fruit capsular. Albu- 

 men floury. Leaves broad . . . 865 



47. PHILTDRE^E. Perianth of 2 roarces- 

 cent petaloid segments. Stamen 1, with 2 

 petaloid staminodes. Ovary 3-celled; style 

 simple ; ovules numerous. Capsule 3-valved. 

 Leaves narrow, equitant . , . 867 



Cohort XIII. Commelynales. Flowers $ , spiked, panicled, solitary or capitate. 



Perianth regular or irregular, of 6 segments in 2 series, 3 outer herbaceous, 3 inner very 



different, petaloid, coloured. Style usually 3-fid. Embryo outside the albumen, or in a 

 distinct cavity in its side. 



48. COMMELYNE^E. Perianth regular or 

 irregular; segments 6, 3 outer herbaceous. 

 Stamens 6, hypogynous, some only or all 

 fertile. Ovary 3-celled. Capsule loculicidal. 

 Albumen fleshy. Herbs with narrow soft 

 parallel-nerved leaves .... 



49. MAYACE^E. Perianth regular ; seg- 

 ments 6, 3 outer herbaceous, 3 inner petaloid. 

 Stamens 3, inserted at the base of the outer 

 perianth-segments ; anthers 1-celled. Ovary 



868 



1-celled ; placentas 3, parietal. Capsule 

 loculicidally 3-celled. Moss-like creeping 

 herbs, with crowded linear flaccid leaves . 870 



50. XYRIDE^E. Perianth regular; segments 

 6, 3 outer scarious, 3 inner petaloid. Stamens 

 and staminodes 3 each ; anthers extrorse. 

 Ovary 1-celled ; style 3-fid ; ovules parietal. 

 Capsule 3-valved. Erect rigid stemless 

 herbs, with filiform or ensiform leaves . 870 



Cohort XIV. Restiales. Flowers or unisexual, regular or irregular. Perianth of 

 4-6 glumaceous or scarious or membranous segments in 12 series, or reduced to scales, or 

 0. Stamens 1-3, free or united in a cup. Ovary usually 3-celled ; ovules solitary, pendu- 

 lous in each cell, orthotropous. Fruit capsular, rigid or membranous. Embryo outside 

 the base of the albumen. 



51. FLAGELLARIE^;. Flowers $. Peri- 

 anth of 6 sub-equal segments in 2 series. 

 Stamens 6, hypogynous, free; anthers 2- 

 celled, introrse. StylesS, papillose through- 

 out. Berry 1-2-seeded. Sedge-like herbs . 



52. EKIOCATTLONE^. Flowers unisexual. 

 Perianth double; outer of 2-3 segments; 

 inner sub-tubular, 2-3-fid. Stamens 4 or 6, 

 the alternate often imperfect ; anthers dorsi- 

 fixed, 2-celled. Ovary 1-3-celled; styles 



871 



1-3, short, slender. Capsule loculicidal. 

 Stemless herbs, rarely suffruticose ; leaves 

 narrow, fleshy or spongy, solid or fistular . 871 



53. EESTIACE^;. Flowers unisexual. Pe- 

 rianth of 1-6 1-2-seriate glumes. Stamens 

 1-3 ; anthers usually 1-celled, iutrorse. Ovary 

 1-3-celled; styles 1-3, slender. Fruit a 

 capsule, utricle or nut. Herbs or undershrubs, 

 tufted or with a creeping rhizome j leaves 

 narrow, sheath usually split . . . 878 



