r 3 o CENTRANTHEROPSIS 



Centrantheropsis Boniti. Scrophular. (in. 2). i China. 



Centranthus DC. Valerianaceae. 12 Medit., Eur. C. rub>r DC. 

 (red spur-valerian) cult. orn. C spurred at the base ; at the end of 

 the spur honey is secre'ed. The tube of the C has a partition dividing 

 it into two, one containing the style, the other, lined with downward- 

 pointing hairs, leading to the spur. Fl. protandr. ; only long-tongued 

 insects can obtain honey. 



Centratherum Cass. Compositae (i). 15 trop. 



Centric (1.), circular in section, with tissues distr. evenly all round, 

 Alii tun, Bobartia, Eleocharis,Juncus, Littorella. 



Centrifugal, away from centre; -petal, towards centre. 



Gen'rilla Lindau. Acanthaceae (iv. B). i Cuba. 



Centrocarpha D. Don = Rudbeckia L. p.p. (Compos.). 



Centroglossa Barb. Rodr. (Zygostates Lindl. EP.). Orchidaceae (n. 

 19) 5 Brazil, Paraguay. 



Centrolepidaceae (EP., BH.). Monocotyledons (Farinosae; Glumaceae 

 BH.). 6 gen. ,32 sp. Austr., N.Z., S. Am., Polynes., S.E. As. Small 

 grass-like herbs with spikes of small fls. , $ or unisex., naked or with 

 i 3 hair-structures round them. A i 2, G i oo , each with one 

 pend. orthotr. ov. Chief genus: Centrolepis. 



Centrolepis Lahill. Centrolepidaceae. 20 Austr., E. As. 



Centrolobium Mart. Leguminosae (ill. 7). 3 trop. Am. Pod winged. 

 C. robiistum Mart, yields good timber (zebra wood). 



Centromadia Greene (Hemizonia p-p.). Compos. (5). 5 Calif. 



Centronia D. Don. Melastomaceae (i). 15 trop. Am. 



Centropetalum Lindl. Orchidaceae (n. 20). 4 Andes. 



Centroplacus Pierre. Euphorbiaceae (A. I. i). i trop. Afr. 



Centropogon Presl. Campanulaceae (in). 90 trop. Am., W.I. 



Centrosema Benth. (Bradbnrya EP.}. Legum. (ill. 10). 30 Am. 



Centrospennae. The ijth order of Dicots. (Archichl.). 



Cen'rostegia A. Gray. Polygonaceae (i. i). 2 California. 



Centrostigma Schlechter. Orchid, (n. i). 3 Nyassaland. 



Cen'unculus Dill, ex L. Primul. 3 temp, and subtrop., i Brit. 



Century, set of 100 dried plants. 



Century plant, Agave americana L. 



Cepa (Tourn.) L. = Allium Tourn. (Lili.). 



Cephaelis Sw. (Uragoga L. EP.). Rubiaceae (n. 5). 130 trop., esp. 

 Brazil. For ipecacuanha cf. Uragoga. 



Cephal- (Gr. pref. ), head. 



Cephalacantnus I indau. Acanthaceae (iv. B). i Peru. 



Cephalandra Schrad. = Coccinia Wight et Arn. (Cucurb.). 



Cephalanthera Rich Orchidaceae (n. 2). 10 N. temp., 3 Brit. No 

 rostellum ; the pollen germinates in situ, fertilising its own stigma 

 (Darwin, Orchids, p. 80). The lat. stds (see fam.) are easily seen. 

 Darwin regards C. as a degraded Epipactis (cf. Cephalopipactis). 



Cephalanthus L. Rubiaceae (I. 6). 8 warm countries. 



Cephalaralia Harms. Araliaceae (2). i Austr. 



Cephalaria Schrad. Dipsacaceae. 35 Medit., Afr. 



Cephalipterum A. Gray. Compositae (4). i S. and W. Austr. 



Cephalobembix Rydberg. Compositae (6). i Mexico. 



Cephalocarpus Nees. Cyper. (n). i Brazil. Habit of Dracaena. 



