Flora of the Malayan Peninsula. 



bOil 



As in the Family Ai'OCYNace.i-;, in which we were much assisted by Dr. 0. Stapf'a 

 account of it in the 'Flora of Tropical Africa,' Vol. IV. Sect. 1, so in Asclepiadace.'e 

 we have been indebted to that by Mr. N. E. Brown in the same work, which has 

 helped us properly to understand the morphology of a very difficult but most interesting 

 Family of plants. We wish also to mention that much assistance was derived from 

 the account of the Family and its Western India genera given by Dr. T. Cooke, C.I.E., 

 in Vol. II. of his ' Flora of the Presidency of Bombay.' 



Analysis of the Teibes. 

 Pollen gi'anular, loosely contained in the more or less spathu- 

 late or bifid appendicles, not attached to the latter . . I. PEUiPLocji.i;. 



Pollen united into very minute waxy masses, 4 or 2 of which are 

 sessile upon a very minute quadrate pale-coloured pollen-carrier II. Secajione^. 

 Pollen united in waxy opaque masses without pellucid margin, 

 usually of fair size and attached in pairs by caudicles to the 

 dark-coloured pollen- carriers : — • 



Pollen-masses pendulous .. .. .. .. III. Cynanche/E. 



Pollen-masses erect or horizontal, very rarely pendulous . . IV. MABSDENiK/Ti;. 

 Pollen united in waxy masses pellucid on one margin or at the 

 apex, and attached in pairs by caudicles to the pollen-carriers V. Ceropegie^. 



Tribe I. PEEiPLOCEiE. 

 Filaments of the stamens free ; anthers acute or with the connectives 

 produced in terminal appendages connivent over the style-apex and 

 frequently connate. Pollen-contents of each anther-cell of numerous 

 loose granules, each granule formed of 3 to 4 pollen-grains united in 

 lines or tetrads. Appendicles spathulate, trumpet-shaped or trowel- 

 shaped, sometimes bipartite, horny, attached by short or long caudicles 

 to an adhesive pollen-carrier gland at the base, which is itself attached 

 to the angles of the style-apex, holding the pollen-granules loosely but 

 not attached to them. 



Corona-processes none : — 

 Anthers with long appendages ; climbers : — 



Anther appendages erect, thick, curving inwards at tip . . 1. Phyllanthera. 

 Anther appendages erect, bearded, erect at tip . . 2. Pentanuea. 



Anthers with short appendages curving over the style-apex ; 

 shrubs . . . . . . . . . . 3. Gongylospeema. 



Corona-processes 5 : — 



Corona-processes short, thick . . . . . . 4. Hemidbsmus. 



Corona-processes filiform, behind the stamens : — 



Stamens without alternating glands between the filaments ; 

 corolla-lobes rounded : — 

 Follicles short, broad, ribbed ; corolla large . . . . 5. Finlaysonia. 



Follicles cylindric, narrow, not ribbed ; corolla small . . 6. Gyjinantheea. 

 Stamens with glands between the filaments : — 



Corolla-lobes elongate, linear-lanceolate ; anther appen- 

 dages long, narrow . . . . . . . . 7. Atheeandra. 



Corolla-lobes short, ovate; anther appendages short, thick 8. Stkeptocadlon. 



