FIGWORT FAMILY 765 



Leaves shorter than the internodes; anthers opening at the distal end. 



16. P. cyananthus. 



Ijeaves longer than the internodes; anthers opening their whole length. 



14. P. cyanocaulis. 



Calyx-lobes with very broad scarious margins, forming basal auricles; 

 anther-sacs opening their whole length. 17. P. Brandegei. 



Calyx-lobes orbicular or broadly ovate, abruptly short-acuminate, very scarioxis 

 and erose. 18. F. glaber. 



Anthers perfectly glabrous. 



^terile filament glabrous or nearly so. 



Plant glabrate. 



Calyx-lobes obovate or ovate, abruptly acuminate, decidedly scarious- 



margined. 19. P. speciosus. 



Calyx-lobes acute or obtuse, scarcely scarious-margined. 



20. P. unilateralis. 



Plant densely puberulent. 21. P. Wardii. 



Sterile filament strongly bearded. 22. P. perpulcher, 



IV. Palmeriani. 



One species. 23. P. Palmeri. 



V. Grandiflort. 



One species. 24. P. grandiflorus, 



VI. Halliani. 

 One species. 25. P. Ilalliu 



VII. ACXJMINATI. 



Inflorescence interrupted; bracts except the lowermost shorter than the flowers; basal 



leaves spatulate or oblanceolate. 

 Stamens exserted; bracts rounded-cordate, abruptly short- acuminate; sepais ovate, 



scarious-margined. 26. P. cyathophorus. 



Stamens included. 



Bracts ovate or cordate. . , , . . i, . 



Calyx-lobes ovate, with scarious toothed margms, abruptly acuminate; bracts 



ovate, acute. 27. P. pachyphyllus. 



Calyx-lobes narrowly lanceolate, not scarious-margined. 



CoroUa-hmb 15-18 mm. broad, glabrous within; tongue of the sterile fila- 

 ment strongly incurved, short yellow-bearded at the apex. ^ 



28. P. acumtnatus. 



Corolla-limb about 1 cm. broad, usually sUghtly bearded withm; tongue of 

 the sterile filament less strongly incurved, yellow-bearded its whole 

 length. 29. P. nitidus. 



Bracts lanceolate to linear-lanceolate. , ^ ^ 



Stem-leaves except the uppermost obtuse, oblong or oblanceolate. tapermg 



into a winged petiole. ^ 30. P.aremcola.^ 



Stem-leaves acute, sessile or the lowermost petioled, but the petiole not winged. 

 Calyx-lobes broadly obovate, scarious, erose. abruptly contracted into a 



very short acumination. 48. P. natsomi. 



Calyx-lobes ovate or lanceolate, acute or gradually acuminate. 



Calyx-lobes lanceolate; plant 2.5-4 dm. high. 31. P. secundinorus. 

 Calyx-lobes ovate, decidedly scarious-margined; plant 2 am. or less 

 ^gh. 32. P. hendlen. 



Inflorescence dense; bracts large, long-acuminate, most of them exceeding the flowers; 



basal leaves linear or nearly so. narrower than the stem-leaves. 



Bracts broadly lanceolate, or the upper ovate. i. , i . ,^ ijr^o^.,. 



Bracts strongly vemed; corolla 2.5-3 cm. long, ventricose; b^al leaves Iin^. 



Bracts not strongly veined; corolla about 2 cm. long, scarcely ventricose; basal 

 leaves linear-oblanceolate. ^ 34. P. caudatus. 



Bracts narrow, linear-lanceolate, not strongly vemed. 35. P. angustijoiius. 



VIII. Fetioi^^ti. 



One species. ^^ ^ _^^,^ 36. P, pcHolotus. 



^ IX. WiPPLEANT, 



One species. ^ r. . .r ^^- ^' *^^"^^^^^^"^- 



X. Cristati, 



Corolla-tube decidedly gibbous-ventricose; sterile stamen densely yellow-villous; corolla 



Stem viscid-villous as well as puberulent, especially the upper part. 



Tnflorescenc^^^^^^^ glandular-villous ; coroUa 2.5-3.5 cm long: leaves entu^ or 



sUghtly denticulate. , __„_.,„_ „. ._o :. .^^t.^^: w^^ «ha^^^ 



Inflorescence 

 dentate. 



39. P. saliens. 



^^'Ba^Ue^V^wSobovate. spatulate. or ovate, broader than the cauJlnel^ves 



Corolla 2-2.5 cm. long. |0- ^- y/jffauii' 



BasaMeaf\\tdlf toearTo Unear-oblanceolate. usually narrower" than the up] 



Corotia^ver Y^m. long ; calj^-lobes linear-lanceolate, ^^^''p.^jXJi'.'^' 



