1227 



Cijc Crrajjttrn at botany. 



[wall 



from nine to twelve flowers, in an erect 

 raceme, about an inch and a half in diame- 

 ter, yellow spotted with crimson. They 

 are related to Trichoglottis, but the latter 

 differs in having a distinct appendage 

 within the sac of the lip, and the flowers 

 in short lateral spikes. The only species, 

 W picta, is a native of Malacca. [W B.H.] 



WAITZIA. A genus of Composites, com- 

 prising certain Australian herbs, whose 

 stems bear heads of flowers arranged in 

 corymbs. The heads are hemispherical, 

 each surrounded by an involucre of many 

 rows of dry coloured stalked scales, provid- 

 ed with a radiating petaloid appendage. The 

 receptacle is flat, pitted, destitute of scales; 

 the corollas hermaphrodite tubular slen- 

 der, five-toothed at the apex ; the branches 

 of the style have little knobs at the ends ; 

 the achenes are flattened, ovate, prolonged 

 at the top into a beak ; pappus of one row 

 of serrated rough setas. The species fur- 

 nish some of the very beautiful 'everlast- 

 ing ' flowers of our gardens. [M. T. 31.] 



WAKE-PINTLE. Arum maculatum. 



WAKE-ROBIN. Arum maculatum ; also 

 Trillium cernuum; also Anthurium and 

 Philodendron. 



WALDSTETNIA. A genus of Rosacea*, 

 comprising certain herbaceous species, 

 with the aspect of some of the Potentillas. 

 The leaves are palmately divided ; and the 

 flowers yellow, in terminal corymbs. The 

 calyx is double, consisting of an outer row 

 of five small segments, and an inner tubu- 

 lar whorl, whose limb is five-parted, and 

 whose throat has a thickened lobed rim 

 running around it; petals five, sessile; 

 stamens numerous, inserted on the calyx 

 with the petals ; ovaries two to six, at the 

 base of the calyx, each with a single ovule; 

 styles terminal. The species are natives of 

 Hungary, and derive their generic name 

 from Count Waldstein, a writer on Hunga- 

 rian plants. W. geoides is an old-fashioned 

 but pretty hardy perennial. [31. T. M.] 



WALEWORT, or WALLWORT. Sam- 

 bucus Ebulus. 



WALKERA. The name applied to a tree 

 found in various parts of Tropical Asia, 

 and constituting a genus of Ochnacea. The 

 leaves are serrated, the flowers are in 

 clusters ; the calyx has five persistent 

 lance-shaped sepals , the corolla has as 

 many persistent petals, longer than the 

 sepals ; stamens five, shorter than the 

 sepals ; style single, as long as the stamens; 

 fruit of five kidney-shaped drupes, placed 

 on a small spongy receptacle. In "Western 

 India a decoction of the roots or of the 

 leaves is used as a tonic and stomachic. 

 The genus is named in honour of Dr. Walk- 

 er, the founder of the Botanic Harden at 

 Cambridge. W. serrata is in cull ivation as 

 a stove-plant. [M. T. 31.] 



WALL ABA-TREE. Eperua falcata. 



WALLENIA. A genus of tropical Ame- 

 rican shrubs, of the family Myrsinaceaz. 



The leathery leaves are entire, and the flow- 

 ers grow in terminal panicles. The calyx 

 is bell-shaped, four-toothed ; the corolla 

 tubular, with a four-parted limb ; stamens 

 four, filaments thick, cohering below; 

 fruit fleshy, globular. [31. T M.] 



WALLERIA. A genus of Liliacew, f rom 



East Tropical Africa, distinguished in the 



conantherous group by having the ovary 



free and the stamens equal, the ovary 



being semiadherent in the rest of the 



group ; while the stamens are equal 



in Conanthera, Cumingia, and their allies, 



and unequal in Zephyra and Cyanella. 



j Dr. Kirk describes them as leafy herbs, 



i with linear-lanceolate leaves, and solitary 



I axillary flowers, which have a six-parted 



i perianth, with very short tube and equal 



I spreading limb ; six equal stamens, with 



j short filaments and elongated anthers, 



i which are two-celled, opening by pores ; 



! and a free three-celled ovary, containing 



I numerous ovules. The two described spe- 



| cies were found on the Manganja Hills. The 



: genus is named after 3Ir. Horace Waller, 



: one of the few survivors of the ill-fated 



Mission to Central Africa. [T. 31.] 



! WALLFLOWER. Cheiravthus Cheiri. 

 — , WESTERN. Erysimum arkansanum. 



j WALL GERMANDER. Teucrium Cha- 

 i mcedrys. 



; WALLICHIA. A genusof palms,named 

 : in honour of the late Dr Wallich, a cele- 

 j brated Danish botanist, and author of 

 several valuable works on Indian plants. 

 It consists of about eight species, natives 

 ! of Northern and Eastern India, Siam, Java, 

 and the Philippine Islands, growing in 

 ; tufts, and either without stems or with 

 \ short reed-like ones. Their leaves are 

 pinnate, and rise from a mass of coarse 

 , fibres; the leaflets being entire and wedge- 

 | shaped at the base, and variously-lobed 

 ' toothed or irregularly jagged in the upper 

 ] part, and whitish underneath. The species 

 i belonging to the section Earina bear both 

 ! male and female flower-spikes on the same 

 j plant, while those of the section Crania 

 have them on distinct plants, the spikes in 

 ! either case having numerous overlapping 

 ! spathes on their stalks. The male flowers 

 ; have a more or less deeply tripartite 

 | calyx, three valvate petals, and six or an 

 j indefinite number of stamens ; while the 

 females have a tripartite calyx and co- 

 rolla, and a two or rarely three-celled ovary. 

 The fruits are olive-shaped, purple or 

 whitish in colour, and contain an acrid 

 stinging juice. [A. S.] 



WALLINIA. A genus of Clienopodiacece 

 from the Cape of Good Hope, comprising 

 an erect branched herb, with alternate 

 entire fleshy leaves, and minute clustered 

 sessile flowers, in simple leafless spikes at 

 the extremity of the branches. The flow- 

 ers havethree bracts; a calyx of five sepals, 

 which are unchanged in fruit ; five sta- 

 mens, and four styles. The fruit is ellip- 

 soidal, eight-ribbed, -with an herbaceous 



