45 
E. roseum. Smooth-leaved Willow-herb. Fig. 441 
Leaves ovato-lanceolate, with petioles. Stem slightly angular. Stigma 
entire. A common weed. 1-ly ft. Perenn. July. Pale rose-colour. 
(|) E.B. 1. 693. E. B. 2. 546. H. Am. 145. Bab. 118. Lind. 108. 
E. tetragonum. Square-stalked Willow-herb. Fig. 442. 
Leaves sessile, lanceolate. Stem 4-angled. Stigma entire. Wet 
places; common. 1-2 ft. Perenn. July. Pale pink. (f) E. B. 
1. 1948. E. B. 2. 547. H.fyArn. 145. Bab. 118. Lind. 108. 
E. palustre. Marsh Willow-herb. Fig. 443. 
Leaves sessile, linear-lanceolate. Stem round. Stigma entire. Marshes 
and bogs. 1 ft. Perenn. July. Pale pink, (f) E. B. 1. 346. 
E. B. 2. 548. H. fy Am. 145. Bab. 118. Lind. 108. 
E. alsini folium. Chickweed Willow-herb. Fig. 444. 
Leaves nearly sessile, ovate. Stem decumbent. Stigma entire. By 
mountain streams. 6in.-lft. Perenn. July. Pink, (f) E.B. 1. 
2000. E. B. 2. 549. H. Am. 145. Bab. 119. Lind. 108. 
E. alpinum. Alpine Willow-herb. Fig. 445. 
Leaves nearly sessile, elliptic-lanceolate, obtuse. Stem decumbent. 
Stigma entire. By mountain streams. 2-4 in. Perenn. July. Pink. 
(|) E.B. 1.2001. E.B. 2.550. H.fyArn. 146. Bab. 118. Lind. 108. 
Genus 2 . (Enothera. 
CE. biennis. Evening Primrose. Fig. 446. 
Stem rough. Flowers sessile, in a terminal spike. Waste ground and 
sandy coasts. 3-4 ft. Bienn. July-Oct. Yellow. (4) E.B. 1. 
1534. E. B. 2. 541. H. fy Am. 146. Bab. 119. Lind. 109. 
Genus 3. Isnardia. 
I. palustris. Fig. 447. 
Stem procumbent, rooting. Flowers axillary, apetalous. Bogs. 
2-4 in. Ann. May-Aug. Green. (f) E. B. Supp. 2593. E. B. 2. 
233*. H. fyArn. 146. Bab. 119. Lind. 109. 
Genus 4. Ciroea. 
C. lutetiana. Enchanter's Nightshade. Fig. 448. 
Stem erect. Leaves ovate, downy. Shady woods, common. l-§- ft. 
Perenn. June and July. Pale pink, (f) E. B. 1 . 1056. E. B. 2. 7. 
H. fy Am. 147. Bab. 119. Lind. 110. 
C. alpina. Alpine Enchanter’s Nightshade. Fig. 449. 
Stem ascending. Leaves heart-shaped. Shady places on mountains. 
4-8 in. Perenn. July and Aug. Pale pink, (f) E.B. 1. 1057. 
E. B. 2. 7*. H. Am. 147. Bab. 119. Lind. 110. 
Order XXVIII. HALORA GACEiE. 
Genus 1 . Hippuris. 
H. vulgaris. Mare’s-tail. Fig. 450. 
Leaves linear, in whorls. Flowers axillary, sessile. Pools and ditches. 
4 in.-l ft. Perenn. May and June. Anther reddish, (f) E. B . 
1. 763. E. B. 2. 3. H. Am. 148. Bab. 120. Lind. 110. 
