FIG WORT FAMILY 209 



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. unilaterahs. 

 Plant densely puberulent. 21. P. Wardil. 



Sterile filament strongly bearded. 22. P. perpulcner. 



IV. Palmeeiani. 



One species. 23. P. Palmen. 



V. Geandiflori. 



One species. 24. P. grandiflorus. 



VI. Halliani. 

 One species. 25. P. Halhi. 



VII. ActlMINATI. 

 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. . 



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



ovate, acute. 27. P. pachyphyllus. 



Calyx-lobes narrowly lanceolate, not scarious-margined. 



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

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



28. P. acummatus. 

 CoroUa^limb about 1 cm. broad, usually slightly bearded within; 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, tapering 



into a winged petiole. 30. P. arenicola 



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

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



very short acumination. 48. P. Watsonii. 



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



Calyx-lobes lanceolate; plant 2.5—4 dm. high. 31. P.'secundiflorus. 

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

 high. 32. P. Fendleri. 



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. 



Bracts strongly veined; corolla 2.5-3 cm. long, ventricose; basal leaves linear. 



33. P. Haydenii. 

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

 leaves linear-oblanceolate. 34. P. caudatus. 



Bracts narrow, Unear-lanceolate, not strongly veined. 35. P. angustifolius. 



VIII. Petiolati. 



One species. 36. P. peliololus. 



IX. WIPPLEANI. 



One species. 37. P. stenosepalus. 



X. Cristati. 

 Corolla-tube decidedly gibbous- ventricose; sterile stamsn densely yellow-vlUoiis ; corolla 

 purplish. 

 Stem vlscid-villous as well as puberulent. especially the upper part. 



Inflorescence densely glandular- villous; corolla 2.5-3.5 cm. long; leave? entire or 



slightly denticulate. 38. P. Erianthera. 



Inflorescence sparingly glandular-villous ; corolla 2-2.5 cm. long; leive3 sharply 

 dentate. 39. P. saliens. 



Stem merely puberulent. 



Basal leaf-blades obovate, spatulate, or ovate, broader than the cauUne leaves. 



Corolla 2-2.5 cm. long. 40. P. Cleburnei. 



Corolla 15-18 cm. long. 41. P. Moffattii. 



Basal leaf-blades linear to linear-oblanceolate, usually narrower than the upper 



cauline leaves. 



Corolla over 2 cm. long; calyx-lobes linear-lanceolate, about 8 mm. long. 



42. P. Jamesii. 

 Corolla glabrous within, less than 2 cm. long; calyx-lobes lanceolate, 4-5 mm. 

 long. 43. P. pumilus. 



Corolla-tube funnelform, scarcely gibbous; sterile stamen sparingly yellow-villous above ^ 

 corolla white. 44. P. albidus. 



XI. Harboubiani. 

 One species. 45. P. Harbourii. 



XII. CONPEETI. 



Sterile filament xisually naked; leaves sharply dentate. 46. P. deustus. 



Sterile filament bearded; leaves entire or denticulate. 

 Calyx glabrous or puberulent but not glandular. 



Corolla sulphur-yellow. 47. P. confertus. 



