KEY TO THE FAMILIES AND GENERA 



89 



26. CARYOPHYLLACEiE. 



A. Ovary 1-ovuled: corolla absent. 

 B. Segins. of involucrate perianth hooded near 



apex and mucronate on back 1. Paronychia. 



BB. Segms. of hardly involucrate perianth not 



hooded, and blunt. 2. Hemiaria. 



&A. Ovary several-ovuled: petals usually present. 

 B. Sepals coalesced into a toothed or lobed 

 calyx ; petals and stamens hypogjTious, 

 being raised with the ovary on a ^n- 

 ophore, rarely .sessile; petals with or with- 

 out a scale at the apex of the claw. 

 c. Hilum facial; embryo straight. 



D. Calyx tubular, niultislriate 3. Dianthus. 



DD. Calyx top-shaped or long-tubular, 5- or 



ir>-ribbed: plants and fls. smaller 4. Tunica. 



CC. Hilum lateral; embryo peripheral. 



D. Calyx 10-nerved, rarely with many 

 parallel nerves. 

 E. Styles commonly 3: caps, shortly 



3- or 6-valved.^ 5. Stlene. 



EE. Styles commonly 5 or 4: caps. 



shortly 5-10- or 4-S-valved 6. Lychnis. 



DD. Calyx obscurely veined 7. Saponaria. 



DDD. Cal>-x broadly or obscurely 5-ner\'ed.. . . 8. Gypsophila. 

 BB. Sepals free or only coalesced at the very 

 biise ; petals and stamens hypogynous 

 on a short torus or usually very shortly 

 perigjTious. 



c. Stipules small, scarious 9. Spergula. 



CC. Stipules 0. 



D. Valves (or rather teeth) of the caps. 



twice as many as the styles^ 10. Cerastium. 



DD. Valves of the caps, as many as the 

 styles. 



E. Petals 2-fid ; styles commonly 3 11. Stellaria. 



EE. Petals entire; styles commonly 3 12. Arenaria. 



EEE. Petals entire or 0; styles as many as 



the sepals 13. Sagina. 



Alsine is also cultivated. 



32. EUCRYPHIACEiE. 



The only genus Eucryphii 



33. TERNSTR(EMIACEiE. 



A. Anthers basifixed. 

 B. Calyx of 5 sepals, sub-connate at the ba.se, at 



length fleshy and adhering to the ovary. . . 1. Visnea. 

 BB. Calyx inferior; sepals free. 



c. Fla. rather large; petals coalesced at base; 

 anthers glabrous: o\'Tjles 2-4 in each 



locule, pendulous from the apex 2. Ternstraemia. 



CC. Fls. medium-sized; petals free or hardly 

 coalesced; anthers pilose: ovules coin 



the middle of the locule 3 Cleyera. 



CCC. Fls. small, dicecious; petals coalesced at 

 base; anthers glabrous: ovules co in the 



middle of the locule 4. Eurya. 



KK. Anthers versatile. 

 B. Radicles inferior. 



c. Ovules ascending ; seeds lens-shaped ; 



embryo straight 5. Stuartia. 



CC. Ovules laterally affixed; seeds flat, winged 

 on back; cotyledons flat and radicle 



inflexed 6. Schima. 



BB. Radicles superior. 



c. Ovules CO ; seeds winged above 7. Gordonia. 



CC. Ovules few in each locule; seeds not 

 winged. 



D. Fla. sessile; sepals deciduous 8. Camellia. 



DD. Fls. pedicelled; sepals persistent 9. Thea. 



34. STACHYURACE.^. 



The only genus Stachyurug. 



35. MALVACE^. 



27. PORTULACACEiE. 



A. Ovary cohering below vrith the calyx-tube 1. Portulaca. 



AA. Ovary free from the calyx. 



B. Embryo arched; endosperm scant 2. Anacamp- 



BB. Embryo more incurved or annular, includ- [seros. 



ing the endosperm. 



C. Sepals usually deciduous 3. Talinum. 



CC. Sepals persistent, at least usually in Cal- 

 andrinia. 



D. Number of sepals 5-8 4. Lewisia. 



UG, Number of sepals 2. 



E. Shape of sepals roundish heart- 

 shaped, scarious 5. Spraguea. 



EE. Shape of sepals ovate, herbaceous. 



F. Stamens 3, rarely 5 6. Montia. 



TT. Stamens definitely 5 7. Claytonia. 



FFF. Stamens indefinitely 5 to many... 8. Calandrinia. 



28. TAMARICACE.E. 



A. Stamens 4-5, free 1. TainaTix. 



AA. Stamens 10, connate below 2. Myricaria. 



29. FOUQUIERIACE.^. 



The only genus Fouqu 



30, HYPERICACE^. 



A. Fls. 4-merous 1. Ascyrum. 



AA. Fls. 5-merous 2. Hypericum. 



31. GUTTIFER^. 



A. Style very short or 0: ovules solitary in each 

 locule of the ovary. 



B. Sepals 4 1. Garcinia, 



BB. Sepals 2 2. Hheedia. 



AA. Style elongated: ovules solitary or 2. 



B. Ovary 1-Ioculed. 1-ovuIed 3. Calophyl- 



\him. 

 BB. Ovary 2-4-Ioculed, 4-ovuled 4. Mammea. 



The genera Ochrocarpus and Platonia are also treated. 



A. Fr. a caps., loculicidally dehiscent {in Adau- 

 sonia indehiscent, and woody). 

 B. Seeds usually kidney-shaped : stigmas or 

 style-branches finally spreading. 

 C. Bractlets 5 to many, rarely 0. or reduced 

 to teeth: style-branches finally spread- 

 ing 1. Hibiscits. 



CC. Bractlets or 3: stigmas distinct, free, 



radiating 2. Lagunaria. 



BB. Seeds obovoid or angled: style club-shaped 

 at apex, undivided or with short erect 

 branches. 



c. Bractlets 3-5, small 3. Thespesia. 



CC. Bractlets 3, large, cordate 4. Gossypium. 



AA. Fr. composed of carpels which separate at 

 maturity. 

 B. Staminal column anther-bearing outside; 

 truncate or 5-toothed at the apex; style- 

 branches 10. 

 c. Bractlets 5-8, herbaceous or setiform; 



carpels with or without 1-3 awns 5. Pavonia. 



CC. Bractlets od, herbaceous or setiform; car- 

 pels fleshy outside, connate into a berry, 



later separating 6. Mahaviscus. 



CCC. Bractlets 4-tj. large and colored; carpels 



naked, muticous 7. GtEthea. 



BB. Staminal column bearing anthers at or near 

 the apex. 

 c. Carpels co, crowded into a mass without 

 order. 



D. Bractlets 3 8. Malope. 



DD. Bractlets 9. Palava. 



CC. Carpels in a single whorl. 

 D. Ovules 2 or more. 



E. Bractlets 4-6 10. Kydia. 



EE. Bractlets 11. Abutilon. 



EEE. Bractlets 3 12. Sphseralcea 



DD. Ovule solitary. 



E. The ovule ascending. 



F. Styles longitudinally stigmatose 

 inside. 



G. Fls. dicEcious 13. Xapsea. 



GO. Fls. bisexual. (See article Sida.' 



H. Staminal column double, the 



outer of 5 clusters 14. Sidalcea. 



HH. Staminal column single. 



I. Bractlets 3-9, connate at 

 base. 

 J. Axis of fr. not surpassing 



carpels 15. AUhaea. 



jj. Axis of fr. surpassing 



carpels 16. Lavatera 



n. Bractlets 0-3, distinct. 



J. Carpels with transverse 

 appendages inside un- 

 der the beak 17. CalUrho'6. 



