156 
: 2.—PLUMBAGO. 
1. P. zeylanica, Zinn. ; Clarke in Hook. f. Fl. Brit. Ind. iii. 480. 
In hedges near Stanley, Hongkong ; ue Santin and 
Lamma Island, Hongkong New Territory; Hoifung 
Pakhoi; Lienchow River. Fl. white, September. 
PRIMULACEAE. 
Key to genera. 
1. Ovary free ix) s. 
.  Ovary adnate to the calyx 9. Samolus. 
2. Corolla lobes imbricated, some > to left 
some to right cen 4. 
Corolla lobes contorted - = 3. 
3. Capsule opening by cap at top .. 4. “Anagallis. 
Capsule opening at sides e. 3. Lysimachia. 
4. Flowers racemose sa "d ... 2. Stimpsonia. 
Flowers umbellate — ... i .. — l. Androsace. 
1—ANDROSACE. 
1. A. saxifragaefolia, Bunge; DC. Prodr. vii. 53. : Swatow, 
Lienchow River. Fl. white, March. 
2.—STIMPSONIA. 
1. 8 — C. Wright in Mem. Amer. Acad. ser. 2, vi. 
401. Swatow. Fl. white, A 
3.—LYSIMACHIA. 
Key to species. 
l. Flowers pee. axillary ; stem from a : 
basal ro -. 1l. alpestris. 
Flowers racemose or umbellate | 2. 
2. Flowers racemose ons 3. 
Flowers in crowded leafy umbel 1- 
3. Stamens longer than corolla ... e. 2, decurrens. 
Stamens shorter than corolla . xà : 
4. Leaves auriculate, sessile — ... .. 39. paludicola. 
Leaves gie: at the base ... 5. 
5. Ke cepe e than thrice as long a as 
the frui 4. candida. 
Pedicels i than twice as long as the 
fruit 6. 
6 PAMRBDNE.. o — ide 8E 
Plant medie T fuo .. 5. clethroides. 
7. Floral leaves similar to cauline ... 6. cephalantha. 
Floral leaves bractiform 7. Ferdiama. — — 
8. Corolla lobes thrice longer than’ tube : 8. mauritiana. 
- "Corolla lobes thrice shorter than tube 9. Fortunei. 
