

OBCHIDS OF MADAGASCAR. 487 



§ Pectinaria. 



Angbjecum pectinatum, TJiouars, Orch. Afriq. t. 51 ; Lindley, 



Gen. and Sp. Orch. PI. p. 247 ; Pick. Orch. Maur. p. 68, 1. 10. f. 5 ; 



Hook. Journ. Pot. i. 47, t. 116.— Aeranthus pectinatus, Peichb. 



f. in TValp. Ann. vi. p. 900 ; S. Moore, in Flor. Maur. et Seych. 



p. 350. 



A. rhizoniate saepe longe repente ; eaulibus ereetis vel curvis, 

 rigidis saepius ramosis ; foliis disticbis coriaceis ]inearibus loratis 

 obtusis, parum recurvis, |-uncialibus ; floribus singulis hi axillis 

 foliorum superiorum, inexpansis parvis albis, ferme scssilibus ; 

 bracteis paucis ovatis obtusis ; sepalis et petalis oblongis obtusis ; 

 labello lanceolato acuto ; calcare quam ovarium breviore rectius- 

 culo obtuso subclavato ; columua brevi ; lobis rostelli brevibus 

 subacutis ; authera depressa ; glaudulis brevibus oblongis ; caudi- 

 culis nullis ; capsula ovali fusiformi |-unciali, costis alatis. 



Madagascar, Thompson ! in Herb. Brit. Mus. Mauritius, 



Chapelier I Capt. Carmichael ! Dr. Wallich ! in Herb. Brit. Mus. ; 



Pouee, Ayres ! Boutonl Telfair I inHerb.Kew. Also Bourbon. 



The main stem of this plant creeps on the tree-trunk in old 



specimens for as much as 4 inches, sending up stiff lateral 



branches, erect or more rarely nodding, closely covered with the 



transversely rugose leaf-sheaths, and from 5 to 6 inches in height. 



The leaves are about | an inch long, rather thick, linear, oblong, 



obtuse. The flowers are very shortly pedicellate, and occur 



singly in the axils of the upper leaves ; they are white, and do 



not appear ever to expand. The petals and sepals are short, 



lanceolate, oblong, the lip acute. The spur is j of an inch long, 



straight, obtuse, slightly dilate at the apex. The pollinia sessile 



ou two short oblong glands. The cap3ule is subcylindrical, £ an 



inch long. 



Mystacidium, Lindley. 

 The typical species of this genus are short- stemmed plants with 

 secund racemes of rather or very small flowers, with usually long 

 spurs, to which have been added a number of plants of very dif- 

 ferent habit, including the genus Gussonia, Richard {Microccelia, 

 Lindley), which seems to be sufficiently distinct. Pectinaria, a 

 section proposed by the authors of the ' Genera Plantarum ' for 

 Angracum distichum, Lindley, and A. pectination, Thouars, seems 

 better referred to Angrcecum ; while to the sectionGowphocentrum, 

 distinguished by its racemes of many flowers and club-shaped or 



LINN. JOITRN. — BOTANY, VOL. XXI. - > 



