FLORA OF MADAGASCAR. 321 
- 
the eorolla-tube. Fruit not seen.—North-west Madagascar, 
Baron 5819 ! 
PLECTRONIA SYRINGAEFOLIA, n. sp. 
Glabra, ramulis gracilibus teretibus, stipulis parvis ovatis, foliis breviter 
petiolatis late oblongis acutis basi rotundatis, floribus in umbellas axillares 
2-4-floras breviter pedunculatas dispositis, pedicellis flore brevioribus, 
calyce tubo infundibulari dentibus minutis, petalis ovatis acuminatis, 
A shrub or small tree, glabrous in all its parts, with slender 
terete branchlets. Petiole j in. long; blade 14-2 in. long, mode- 
rately firm in texture, green and glabrous on both surfaces, the 
veins beneath fine and immersed. Umbels solitary from the 
axils of many of the leaves on ascending peduncles 4 in. long. 
Calyx 4 in. long; teeth 5, minute. Bud ovoid, with a distinct 
cusp. Petals } in. long. Fruit not seen. -Baron 5019! 
DIRICHLETIA LEUCOPHLEBIA, n. sp. 
D. ramulis brevibus glabris, stipulis fimbriatis, folis breviter petiolatis 
oblongis acutis facie glabris dorso ad venas adpresse albido-sericeis, tloribus 
in eymas terminale paucifloras dispositis, calycis tubo subeampanulato 
dentibus parvis lanceolatis, corolla tubo brevi cylindrico sericeo fauce 
dense piloso, segmentis ovatis parvis. 
A shrub or small tree, with brownish subterete woody branch- 
lets, with short internodes.  Petiole 4 in. long ; blade 12-2 in. 
long, narrowed gradually to both ends, silky only on the ascending 
parallel main veins beneath. Cymes few-flowered, fascicled, ter- 
minal, shortly peduncled. Calyx 3-4 in. long, glabrous; teeth 
shorter than the tube. Coralla-tube 1 in. long, silky ; segments 
half as long as the tube. Fruit not seen.—North-west Mada- 
gascar, Baron 5777! The genus is reduced by Baillon to 
Carphalea. 
DrRICHLETIA SPHEROCEPHALA, N. Sp. 
D. ramulis tetragonis sulcatis breviter pilosis, foliis late oblongis acutis 
subcoriaceis utrinque pubescentibus, floribus in capitula globosa peduncu- 
lata axillare aggregatis, bracteis magnis ovatis acutis foliaceis, calycis 
segmentis acuminatis tubo infundibulari zequilongis, corolle tubo elongato 
angustissimo piloso, segmentis parvis oblongis. 
A shrub or small tree, with long straight woody branchlets, 
Stipules very small, ovate; petiole j-3 in. long; blade 14-2 in. 
long, about an inch broad, cuneate at the base, moderately firm in 
texture, green above, drab beneath, with 6-8 parallel raised main 
