128 IX. FTJMARIACE^. [FufMriHt 



ovules 2, on 2 placentas. Fruit indehiscent, globose, 1-seeded.— Disteib. 

 Species about 8: usually agrarian weeds of the temperate regions of the 

 Old World. 



1. P. parvlflora, Lamk sub-sp. Vaillantii, Zoisel (sp.) ; diffuse, leaf- 

 segments flat, racemes lax-flowered, sepals lanceolate much smaller than 

 the corolla-tube, pedicels exceeding the bracts, fruit globose rugose when 

 dry rounded at the. top with 2 pits. 



Indoganoetio plain, Lower Himalaya and NinjmEi Mm., a weed of cultivatiMi.— ' 

 DiSTKiB. : of the genus. 



Pale green, much branched. Sacemee 1-2 in. Flowers J-J in., whitish or rose- 

 coloured, tips purple. 



Order X. CRUCIFERiE. (By Hooker f. & T. Anderson.) 



Herbs, rarely undershrubs ; juice watery, often pungent. Leaves cauUne 

 and radical, the latter in a rosette, cauline alternate, exstipulate. Mowers 

 racemed, rarely solitary on scapes, or axillary. Sepals 4, free, 2 lateral (op- 

 posite the placentas) often large and saccate at the base, imbricate. Petals 

 4, free, hypogynous, placed crosswise, imbricate, Stamens 6 (rarely 1, 2, or 

 many) ; 2 outer opposite the lateral sepals ; 4 inner longer, in opposite pairs'. 

 Disk with usually 4 glands opposite the sepals. Ovary 2-celled by a pla- 

 cental membrane, or 1-celled, or with superimposed cellules ; style short or 

 0; stigma simple or with 2 lobes opposite the placentas; ovules 1-2 or oo, 

 2-seriate on two parietal placentas, rarely solitary and erect. Fruit either 

 a 2-celled 2-valved pod, the valves deciduous and leaving the seeds on the 

 persistent placentas (replum), or indehiscent, qr transversely jointed. Seeds 

 small, albumen ; cotyledons large, plano-convex or longitudinally concave 

 or folded, foliaceous in germination ; radicle turned up on the back of one 

 cotyledon {incumbent), or facing the edges of both {accumbent). — DlSTRm. 

 Genera 172 : species about 1200 : natives chiefly of temperate regidns of the 

 Old World. 



Series A. 



Pods long or short, dehiscing throughout their length, terete, 4-angled or 

 compressed dorsally (parallel to the septum). 



Tribe I. Arabideae. Pods narrow, long. Seeds usually 1-seriate. 

 Cotyledons accumbent. (Pods sometimes short in 2, Pa/rrya, 5, Nasturtium 

 and 10, Notoceras; seeds 2-seriate in Arahis glabra, and in some species of 

 2, Parrya) 



* Sepals narrow, erect. Valves withqiU horns or appendages. Stigmas erect, 

 connate or decurrent on the style (2-lobed in some species of 2, Parryd). 



Erect branched hoary herbs 1. Matthiola. 



Low alpine tufted ecapigerons herbs 2. Paeefa 



** Sepals hroad or narrow. Stigma undivided or shortly i-lobed. (See also 

 2, Parry a.) 



Sepals erect, lateral saccate.— Hoary leafy erect herbs .... 3. CEEiEAHTHns. 



Anthers of long stamens 1-celled. — A minute herb 4. Atelantheea. 



Sepals spreading, not saccate; pods tumid, seeds minute 2- 



seriate. Flowers usually yellow 6. Nasturtitim. 



Sepals not saccate; pods 4-angled; seeds 1-seriate. Flowers 



y^ll"^ ' 6. Babbabea, 



