Costae of ovarian receptacle with short opposite tubular branches; NOT connected by a membrane.
Costae of ovarian receptacle numerous, each with a single branch near the bottom, and beset with small cup-like processes, and not connected by a membrane.
Costae of ovarian receptacle connected by a membranous expansion.
The surface is deeply wrinkled by longitudinal costae and is encircled by revolving grooves.
It is flatly convex and radially ribbed by a great number of costae which are crossed and decussated throughout with concentric ridges.
Its costae are very short, and retrusible; its two tentacles are pinnate and are also retrusible.
The stipe is shorter, the cup wanting, and the costae are few and simple.
The ribs or costae of the spore-case radiate from the top of the stipe and unite again at the top of the sporangium in a feeble, irregular net.
Valves costate, thecostae alternating with double rows of fine puncta.
Costae about 5 in 10 [mu], alternating with double rows of fine puncta; short costae occur along the borders of the horns.
Valve not divided by rays or costae into sectors; puncta sometimes radiate; ocelli or processes absent.
Peronia has very delicate costae and a distinct pseudoraphe not noticeable in Meridion.
Costae dilated at the margin, attenuated toward the pseudoraphe.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "costae" in a variety of sentences. We hope that you will now be able to make sentences using this word.