PAM. 100. 131 



R. humilis. Stems very short; leaves few. spatulate to oval, sessile; calyx brist- 

 ly, with linear lobes; corolla blue to white with much dilated throat. Sandy 

 soil. 



R. strepens. Stems erect, simple or branched; leaves ovate to oblong, peti- 

 oled; calyx bristly; corolla blue-purple or nearly white. Dry soil. 



R. ciliosa. Stems erect, more or less branched; leaves oval to oblong, ciliate. 

 sessile; calyx bristly, corolla blue. Dry ground. 



Several Rutllias are cultivated as potplants; the flowers are carmin. red or rose, 

 blue or purple, white veined with lilac; some have the lower surface of the leaf purp- 

 lish, as R. devosiana and R. makoyana. 



Fittonia is a genus, cultivated for the large heart-shaped leaves with brilliant 

 venation; F. Verschaffeltii has red veins. F. argyroneura has white veins. 

 Other genera in outdoor's cultivation are: 



a. Thunbergia, mostly climbers with large 2-bracted flowers, as the blue T. 



laurifolia and its varieties; T. alata with a buff or cream-colored corolla 

 and dark-purple center; white, orange or yellow varieties. T. (Meyeaia) 

 erecta, an erect shrub, the corolla with purplish border and yellowish 

 throat; white and violet and blue varieties. 



b. Eranthemum. Shrubby plants with white, lilac or red flowers. 



c. Daedalacanthus nervosus (Eranthemum pulchellum) with dark blue flowers 



in axillary spikes; blooms here in Winter. 



d. Jacobinia. Shrubs or herbs with narrow-tubular red. orange or yellow 



flowers and opposite, entire leaves; calyx deeply 5-parted. corolla more 

 or less 2-lipped. stamens 2 and 2 small staminodia. — J. coccinea, a shrub 

 of about 2 m. high, has crimson flowers in dense terminal spikes blooming 

 in late Summer and Fall. 



e. Justicia is a genus closely allied to the preceding; it contains chiefly herbs 



with the red, pink or white flowers in bracted fascicles or heads; they 

 are chiefly potplants. 



f. Strobilanthes, erect half-shrubby plants with funnel-shaped flowers. The 



two chiefly planted are: 



S. isophyllus, a bushy shrub with narrow-lanceolate leaves and narrow 



light blue flowers in early Spring. 

 S. anisophyllus with broad-lanceolate leaves and wide purplish blue 



flowers during Spring and Summer. 



160. Pinguiculaceae iXentibulariaceae), Bladderwort Family. 



Scapose or caulescent herbs growing in water or wet 

 places; leaves submerged and dissected, often bearing 

 bladders, — or aerial, basal and entire, — or leaves want- 

 ing; flowers perfect, irregular; calyx of 2 or 5 sepals; corolla 

 2-lipped, saccate or spurred; stamens 2, included, fila- 

 ments twisted; ovary free, 1-celled, with numerous ovules; 

 style short with 2-lipped stigma, the lower lip covering 

 the anthers; fruit a capsule. 



1. Sepals 5; corolla-tube not closed by the palate; — scapose herbs in wet 

 soil; leaves entire, forming a rosette at the base; scapes dttSten 1. 

 1-flowered; sepals more or less united; corolla more or lc - 



