38 



II. MONOCOTYLEDONS. 



[Plants with one seed-leaf. Leaves usually parallel-veined, radical and sheathed at base. 

 Flowering parts in threes.] 



I. PETALOID FLOWERS. 

 A. Ovary Superior. 



[Orders LXXV. to LXXIX., LXXXV, LXXXVI.] 



LXXV. TYPHACE/E. 

 Genus. Species. 

 Typha latifolia 

 Spargfanum ramosum .. 

 „ simplex 



LXXVI. AROIDEiE. 

 Arum maculatum 

 Acorus Calumus 



LXXVII. LEMNACE^. 

 Lemna trisulca 

 ,, minor 

 ,, polyrrhiza 



BULRUSH FAMILY. 

 English Name. 

 Bulrush 



Branched Bur-reed 

 Simple ,, 



ARUM FAMILY. 

 Lords and Ladies 

 Sweet Flag 



DUCKWEED FAMILY. 

 Ivy-leaved Duckweed 

 Lesser ,, 



Greater Duckweed 



[Reed-like Herbs.] 



Date. Record. 



July 15 ... C, D, St. 



July i8 ... C, D, St. 



July 24 ... C, M, St. 



[Herbs] 

 May 3 ... W. 



[Floating plants] 

 July 16 ... C. 

 June 21 ... W. C, M, Ba, 

 July 24 ... M. [St. 



LXVIII. NAIADES. 

 Potamogeton natans 



PONDWEED FAMILY. 

 Pondweed 



[Floating plants.] 



LXXIX. ALISMACE^. WATER-PLANTAIN FAMILY. [Water plants. Ls broad net- 

 veined. Perianth in 6. St 6 to 7.] 



Butomus umbellatus ... Flowering Rush ... July 15 ... C, M, D, St. 



Sagittaria sagittifolia ... Arrowhead ... July 15 ... C, M, St. 



Alisma Plantago ... Water Plantain ... July i ... C, M, D, St. 



Triglochin palustre ... Arrowgrass 



PETALOID FLOWERS. 

 B. Ovary Inferior. 



[Orders LXXX. to LXXXIV.] 

 LXXX. HYDROCHARIDE^. FROGBIT FAMILY. [Aquatic Herbs. Peri.inth 3 to 6 parts. 



Dioecious.] 

 Hydrocharis Morsus- 



ranae... Frogbit .. July 18 .. C, St. 



LXXXI. ORCHIDACE.ffi. ORCHID FAMILY. [Herbaceous plants, with knob- 



like roots. Fls spikes or racemes. Perianth in 6, irreg. St i or 2, imperfect.] 



