i So CORRIGIOLA 



Corrigiola L. Caryophyllaceae (i. 4). 12 Medit., Ancles, S. Afr., Eur. 

 i Brit. 



Corsia Becc. Burmanniaceae. i New Guinea. 



Corsiaceae (Beccari), Burmanniaceae p.p. 



Corsican pine, Pin us Laricio Poir. 



Cortaderia Stapf. Gramineae do). 10 S. Am. Pampas grass. 



Cortesia Cav. Boraginaceae (n). 2 temp. S. Am. 



Cortex, tissue between vascular bundles and epidermis. 



Cortia DC. Umbelliferae (ill. 5). 2 Himalaya. 



Cortusa L. Primulaceae. i Mts. of Eur. and As. Cult. orn. fl. 



Corunastylis Fitzgerald. Orchidaceae (n. 2). i Austr. 



Coryanthes Hoolc. Orchidaceae (n. 13). 6 trop. S. Am., epiphytic. 

 Fl. pend.; seps. bent back and fairly large, pets, small. Labellum 

 complex, forming a bucket-like organ with dome above ; the mouth 

 faces upwards, and the edges are incurved ; there is also an overflow 

 pipe projecting towards the seps. and closely covered in by the bent 

 end of the column, with the stigma and anther. From the base of 

 the column project two horns which secrete a thin watery fluid that 

 drips into the bucket, keeping it full to the level of the overflow pipe. 

 The dome (above) is composed of succulent tissue attractive to bees ; 

 these light for places on it to drill the tissue ; every now and then 

 one gets pushed off and falls into the bucket. It can neither fly nor 

 climb out, and has to squeeze through the overflow pipe. In so 

 doing it first passes the stigma, fertilising it if it bears any pollen, 

 and then, passing the anther, is loaded with new pollinia. [Darwin's 

 Orchids, p. 173, and cf. Stanhopea.] 



Corybas Salisb. = Corysanthes R. Br. (Orchid.). 



Corycium Swartz. Orchidaceae (n. i). 10 S. Afr. 



Corydalis Vent. Papaveraceae (in). 120 Medit., Eur., As. C.clavi- 

 cidata DC. Brit., a (leaf) tendril-climbing annual. Most are perennial 

 herbs with underground tubers. In C. cava Schweigg. et Kort., and 

 others, the main axis forms a tuber, which dies away below, each 

 annual shoot arising from the axil of a scale-1. of older date. In 

 C. solida Sw., and others, the tuber is a swollen root-structure be- 

 longing to the current annual shoot. Fls. transv. -|- (see fam. for 

 diagram) ; twisting through 90 brings it vertical ; only one petal is 

 spurred and contains the honey secreted by a staminal outgrowth. 

 Its mech. resembles that of Leguminosae. The inner pets., united 

 at the tip, enclose stigma and anthers ; the upper pet. covers the fl. 

 Bees alighting push down the inner pet. and cause the essential 

 organs to emerge. In some, e.g. C. oc/iroleuca Koch and C. In tea DC., 

 the emergence is explosive (cf. Genista). The fls. of C. cava are self- 

 sterile. 

 Corylopsis Sieb. et Zucc. Hamamelidaceae. 10 China, Japan. Fls.?, 



in spikes with coloured bracts at base. 



Corylus (Tourn.) L. Betulaceae (i). 8 N. temp. C. avella>ia L., 

 hazel-nut (Brit.). Shrubby (largely owing to extensive formation 

 of suckers), with monoecious catkinale fls. (the ? catkin sessile and 

 elliptical in outline, rather resembling a bud). Both are laid down 

 in autumn ; the S catkins are visible all winter, but the ? are not 

 obvious until the red stigmas come out early in the year. Anemoph. ; 



