258 WATERLEAF FAMILY. 



# * Spikes collected in terminal and several times forked ci/mcs : woody-stemmed 



or shrubby house and beddinrj plants from Peru and Chili. If. 



H. Peruvianum, SWEKT HELIOTROPK. Pubescent, with ovate-oblong 

 or lance-ovate very veiny rugose leaves, and vanilla-scented pale blue-purple 

 flowers. 



II. corymbbsum. Cult, with the other, differs mainly in the larger and 

 deeper-blue flowers of much less fragrar.ee. 



13. HELIOPHYTUM. (Name of the Greek words for sun and plant, 



indicating the resemblance to Heliotrope.) 



H. Indicum, IVDIAX HELIOTROPE : hairy low plant, nat. from India as a 

 weed in waste ground S. ; with ovate heart-shaped leaves, and solitary spikes of 

 small purplish flowers, in summer ; a cavity before each seed-bearing cell of the 

 2-lobed fruit 



81. HYDROPHYLLACEJE, WATERLEAF FAMILY. 



Plants in some sort resembling both the foregoing and the following 

 families, in the arrangement of the flowers more commonly imitating 

 the former; differing from both in the 1 -celled ovary and pod with 

 2 parietal placentae. In some the placentas unite in the axis, making 

 a two-celled ovary. Style 2-cleft or else 2 separate styles. Ovules 

 at least 2 to each placenta. Seeds with a small embryo in hard 

 albumen. Juice inert and watery. Leaves mostly alternate, simple 

 or compound. The following are all N. American plants, some 

 wild, the others cult, for ornament from the West. 



1. Style 2-cleft: ovary and pod l-celled, with two parietal placenta, 



# These fleshy and so broad that they line the ovary, and enclose the (mostly 4) ovules 



and seeds : corolla usually convolute in the bud, commonly with 5 or 10 folds, 

 scales, or other appendages down the inside vf the tube. 



1. HYDROPHYLLUM. Calyx 5-parted, sometimes with small appendages at the 



sinuses, not enlarged in fruit. Corolla bell-shaped. Style and mostly hairy 

 filaments protruded : anthers linear. Pod small, globose, ripening 1-4 

 spherical seeds. Flowers in crowded cymes or clusters. Leaves alternate, 

 slender-petioled. 



2. NEMOPHILA. Calyx 5-parted, and with a reflexed appendage in each sinus, 



somewhat enlarging in fruit. Corolla open bell-shaped or wheel-shaped, 

 longer than the stamens. Flowers solitary and long-peduncled. Leaves 

 mostly opposite, at least the lower ones. 



# * Placentae narrow, adherent directly to the walla, or else borne on an incomplete 



partition and projecting into the cell, where they sometimes mett: lobes of the 

 corolla imbricated in the bud. 



8. PHACELIA. Calyx 5-parted, the division? narrow ; no appendages at the 

 sinuses. Corolla open bell-shaped, approaching wheel-shaped. Stamens ami 

 fctyle often protruded. Pod 4- imny-seeded. Leaves alternate. Flowers in 

 one-sided raceme-like clusters or spikes. 



4. WHITLA VIA. Corolla tubular-bell-shapod or slightly contracted at the throat, 

 the 5 short and broad lobes abruptly and widely 'spreading. (Pod many' 

 seeded.) Otherwise as the last section of Phaceliix. 



2. Styles 2 (rarely 3), separate quite to (lie base: ovary and pod 2-celled: seeds 

 minute and rrry numerous. 



6. HTDRQLEA < 1 al yx f>-parted. Corolla open-bell-shaped or approaching wheel- 

 shaped, rather shorter than the stamens: filaments enlarged at base. Herbs, 

 or somewhat shrubby, with entire leaves and often spines in their axils 

 Flowers in ioo>e axillary cluster.-. 



WIGANDIA, from South' America, with very large rounded leaves and sharp 

 or stinging bristles, is of late planted out as an ornamental leaf-plant, but is 

 as yet uucominou. 



