44 RtJBlACEJE. C(elostylis. 



This genus was characterized and published by the accomplished Endlicher, from 

 an insufficient specimen of the Florida plant, the fruit of which is still a desideratum. 

 But a second species of the genus fortunately occurs in Drummond's Texan Col- 

 lection {no. 321 of 3/v/. coll.), from which we have completed its carpological histoiy. 

 — The venation of the corolla is somewhat curious, although nearly the same as in 

 many Rubiacese. There are about 20 primaiy veins, three of which are continued 

 into each segment and somewhat ramified towards its summit : there is also a vein 

 corresponding with each sinus, occupying the situation of the primary veins in Com- 

 positse, and forked near the sinus in the same manner, one division passing into 

 each segment and coursing near the margin, but disappearing by ramification before 

 it reaches the summit. — The nearest alliance of Coelostylis is perhaps with Logania 

 § Stomaudra, R. Br. ; from which it differs abundantly in the cestivation of the co- 

 foUa, and the insertion of the stamens. 



1. C. loganioides (Torr. & Gr. 1. c.) : leaves ovate and obovate, some- 

 what coriaceous ; the upper surface with the margins and tlie summit of the 

 stem somewhat pnbenilent-scabrous. 



Near Fort King, Florida, Dr. Burrows ! — Stem, or branches, slender, 6- 

 10 inches long, ascending, glabrous except the upper part and about the 

 nodes, somewhat 4-angled by lines decurrent from the leaves; two of the 

 angles more distinct. Leaves about half an inch long, scarcely petioled, 

 rather obtuse, marked with a few strong oblique veins. Flowers apparently 

 three together at the summit (the central one on a short pedicel), or solitary 

 and axillary- Sepals almost distinct, linear-subulate, less than half the 

 length of the corolla, minutely serrulate under a lens. Corolla about 4 lines 

 long, glabrous, probably white: the lobes ovate-lanceolate, acuiish. Fila- 

 ments scarcely longer than the anthers: pollen triangular. Ovary ovoid, 

 Fftiit unknown. 



2. C. Texana : leaves lanceolate and oblong-lanceolate, membranaceous, 

 glabrous; .stem dichotomous at the summit. 



Texan, Drummond ! — Stem ascending, 12-18 inches high, 4-angled with 

 decurrent lines, di-trichotomous at the summit, often bearing 4 leaves in a 

 whorl at the first bifurcation. Leaves 1-2 inches long, 6-8 lines wide, rather 

 acute at each end ; the veins few and nearly simple. Siijiules ovate, those 

 near the base of the stem almost obsolete. Flowers dichotomal or terminal, 

 solitary or three together : the central ones on very short pedicels. Calyx, 

 corolla, stamens, and style as in the preceding species, except that the hairy 

 portion of the latter is shorter. Capsule about 3 lines wide, composed of two 

 globose glabrous cocci, which cohere by a small portion of their face, separa- 

 ting from each other at maturity, and from the indurated disk, which, with 

 the calyx, remains attached to the summit o.f the pedicel. Seeds strongly 

 pitted. 



18. MITREOLA. Linn. hort. Cliff.; R. Br. prodr. 1. p. 450 (note); 

 A. Rich, in mem. soc. hist. nat. Par. 1. t. 3. 

 Ophiorhiza Mitreola, Linn. spec. — Cynoctonum, Gmel. 

 Calyx 5-parted. Corolla urceolate-infundibuliform, exceeding the calyx, 

 bearded in the throat ; the lobes of the 5-parted limb ovate, 3-nerved. Sta- 

 mens 5, included, inserted into the lower part of the tube of the corolla : an- 

 thers roundi.sh. Ovary 2-celled, coherent with the calyx at the base : styles 

 short, separate at the base, united above: stigmas also united, small. Cap- 

 sule alinost entirely free from the calyx, 2-horned or deeply 2-lobed, mitre- 

 shaped, 2-celled, each lobe dehiscent near the suminit by the ventral suture: 

 placentas stipitate from near the summit of the dissepiment, many-seeded. 

 Seeds very small, oval, anatropous, minutely scrobiculate under a lens. 

 Embryo nearly the length of the fleshy albumen, straight : radicle cylindri- 



