25 
. Leaves sheathing or with seer te 
stipules Naiadaceae (p. 290). 
Leaves not sheathing nor With 
les 
sheathing stipules Lemnaceae (p. 290). 
2, Stem solid; leaf eum ‘not split Cyperaceae (p. 293). 
lit 
tem ollow ; leaf sheath split ... Gramineae (p. 307). 
251. 
. Perianth regular, or d) 80 
erianth irre 
Plant not Dr Cu nor E 
M 259. 
. Submerged or floating plants ..- Hydrocharidaceae (p. 251). 
255, 
255. Ovary 1-celle 256. 
Ovary 3-celled vt 251. ; 
256. Stamens 3 ... E = .. Burmanniaceae (p. 258) 
Stamens 6... st a -. Laccaceae (p. 275). 
257. Stamens : á .. Iridaceae P: 274). 
Stamens 
258. Ovary colli 2-ovulate Ha NC (p. 273). 
Veins of leaves divesging from 
midri 
Ovary cells, 1- or many-ovulate ... Amaryllidaceae (p. 274). 
Scitamineae (p. 270). 
Veins of leaves parallel to midrib Orchidaceae (p. 258). 
DICOTYLEDONES. 
RANUNCULACELE. 
Key to genera. 
Climbing plants i one ax 
Erect plants 
2. Flowers with capillary staminodes |... 
wers without staminodes ... TE 
3. Flowers regular oa : 
Flowers irregular ees nee 
4, Carpels with one ovule a 
Carpels with two or more ovule ^ .. 
5. Carpels st ts m i 
Carpels sessile ... ie 
6. Petals s ae h ; E 
Petals large . ... v : sé 
1.—CLEMATIS. | 
Key to species. 
1. Leaflets irregularly incise-serrate `... 
Leaflets entire ... oes ien 
2. Filaments hairy Y e. 
ilaments glabro 
3. Filaments much prolo 
Filaments not ung T aoe ie 
2. 
3. 
3. Naravelia. 
l. Clematis. 
4. 
6. Delphinium. 
5. 
6. 
2. Thalictrum. 
4. Ranunculus, 
9. Coptis. 
7. Paeonia. 
` I. grata. 
2 
2. caesariata. 
3 
3, jilamentosa: 
p s 
